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    Statistics for Managers Using Microsoft Excel, 6e(Levine)

    Chapter 2 Presenting Data in Tables and Charts

    1) Jared was working on a project to look at global warming and accessed an Internet site wherehe captured average global surface temperatures from 1866. Which of the four methods of data

    collection was he using!) "ublished sources#) $%perimentation&) 'urve(ing) *bservation!nswer+ !iff+ 1,e(words+ sources of data

    -) he #ritish !irwa(s Internet site provides a /uestionnaire instrument that can be answeredelectronicall(. Which of the 0 methods of data collection is involved when people complete the

    /uestionnaire!) "ublished sources#) $%perimentation&) 'urve(ing) *bservation!nswer+ &iff+ 1,e(words+ sources of data

    ) ! marketing research firm2 in conducting a comparative taste test2 provided three t(pes ofpeanut butter to a sample of households randoml( selected within the state. Which of the 0

    methods of data collection is involved when people are asked to compare the three t(pes ofpeanut butter!) "ublished sources#) $%perimentation&) 'urve(ing) *bservation!nswer+ #iff+ 1,e(words+ sources of data

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    0) im was planning for a meeting with his boss to discuss a raise in his annual salar(. Inpreparation2 he wanted to use the &onsumer "rice Inde% to determine the percentage increase inhis real 3inflation4adjusted) salar( over the last three (ears. Which of the 0 methods of datacollection was involved when he used the &onsumer "rice Inde%!) "ublished sources

    #) $%perimentation&) 'urve(ing) *bservation!nswer+ !iff+ 1,e(words+ sources of data

    5) Which of the 0 methods of data collection is involved when a person counts the number ofcars passing designated locations on the os !ngeles freewa( s(stem!) "ublished sources#) $%perimentation&) 'urve(ing) *bservation!nswer+ iff+ -,e(words+ sources of data

    6) ! statistics student found a reference in the campus librar( that contained the median famil(incomes for all 57 states. 'he would report her data as being collected using!) a designed e%periment.#) observational data.&) a random sample.) a published source.!nswer+ iff+ 1,e(words+ sources of data

    ) he personnel director at a large compan( studied the eating habits of the compan(9semplo(ees. he director noted whether emplo(ees brought their own lunches to work2 ate at thecompan( cafeteria2 or went out to lunch. he goal of the stud( was to improve the food service atthe compan( cafeteria. his t(pe of data collection would best be considered as!) an observational stud(.#) a designed e%periment.&) a random sample.

    ) a /uota sample.!nswer+ !iff+ 1,e(words+ sources of data

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    8) ! stud( attempted to estimate the proportion of :lorida residents who were willing to spendmore ta% dollars on protecting the beaches from environmental disasters. went(4five hundred:lorida residents were surve(ed. What t(pe of data collection procedure was most likel( used tocollect the data for this stud(!) a designed e%periment

    #) a published source&) a random sample) observational data!nswer+ &iff+ 1,e(words+ sources of data

    ;) Which of the following is a discrete numerical variable!) he ow Jones Industrial average#) he volume of water released from a dam&) he distance (ou drove (esterda() he number of emplo(ees of an insurance compan(!nswer+ iff+ 1,e(words+ discrete random variable2 t(pes of dataopics+ 'ection -.1

    17) Which of the following is a continuous numerical variable!) he color of a student9s e(es#) he number of emplo(ees of an insurance compan(&) he amount of milk produced b( a cow in one -04hour period) he number of gallons of milk sold at the local grocer( store (esterda(!nswer+ &iff+ 1,e(words+ continuous random variable2 t(pes of dataopics+ 'ection -.1

    11) o monitor campus securit(2 the campus police office is taking a surve( of the number ofstudents in a parking lot each 7 minutes of a -04hour period with the goal of determining whenpatrols of the lot would serve the most students. IfXis the number of students in the lot eachperiod of time2 thenXis an e%ample of!) a categorical random variable.#) a discrete random variable.&) a continuous random variable.

    ) a statistic.!nswer+ #iff+ -,e(words+ discrete random variable2 t(pes of dataopics+ 'ection -.1

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    1-)

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    16) he chancellor of a major universit( was concerned about alcohol abuse on her campus andwanted to find out the proportion of students at her universit( who visited campus bars on theweekend before the final e%am week. >er assistant took a random sample of -57 students. heportion of students in the sample who visited campus bars on the weekend before the final e%amweek is an e%ample of ????????.

    !) a categorical random variable#) a discrete random variable&) a continuous random variable) a parameter!nswer+ &iff+ ,e(words+ continuous random variable2 t(pes of dataopics+ 'ection -.1

    !#$ -41

    he manager of the customer service division of a major consumer electronics compan( isinterested in determining whether the customers who have purchased a @ pla(er made b( thecompan( over the past 1- months are satisfied with their products.

    1) ow man( @ pla(ersmade b( other manufacturers have (ou usedA are values from a!) discrete random variable.#) continuous random variable.&) categorical random variable.) parameter.!nswer+ !iff+ 1,e(words+ discrete random variable2 t(pes of dataopics+ 'ection -.1

    18)

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    1;)

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    -)

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    -)

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    1) ow would (ou rate the/ualit( of (our purchase e%perience with 1 B e%cellent2 - B good2 B decent2 0 B poor2 5 BterribleA result in!) a nominal scale variable.#) an ordinal scale variable.

    &) an interval scale variable.) a ratio scale variable.!nswer+ #iff+ -,e(words+ ordinal scale2 t(pes of dataopics+ 'ection -.1

    -)

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    !#$ -4-

    !n insurance compan( evaluates man( numerical variables about a person before deciding on anappropriate rate for automobile insurance. ! representative from a local insurance agenc(selected a random sample of insured drivers and recorded2X,the number of claims each made in

    the last (ears2 with the following results.

    X f1 10- 18 1-0 55 1

    5)

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    !#$ -4

    !t a meeting of information s(stems officers for regional offices of a national compan(2 a surve(was taken to determine the number of emplo(ees the officers supervise in the operation of theirdepartments2 whereXis the number of emplo(ees overseen b( each information s(stems officer.

    X f1 - 5 110 85 ;

    8)

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    !#$ -40

    $ver( spring semester2 the 'chool of #usiness coordinates with local business leaders a luncheonfor graduating seniors2 their families2 and friends. &orporate sponsorship pa(s for the lunches ofeach of the seniors2 but students have to purchase tickets to cover the cost of lunches served to

    guests the( bring with them. he following histogram represents the attendance at the seniorluncheon2 whereXis the number of guests each graduating senior invited to the luncheon andfisthe number of graduating seniors in each categor(.

    01)

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    0) ! professor of economics at a small e%as universit( wanted to determine what (ear inschool students were taking his tough economics course. 'hown below is a pie chart of theresults. What percentage of the class took the course prior to reaching their senior (ear

    !) 10C#) 00C&) 50C) 86C!nswer+ iff+ 1,e(words+ interpretation2 pie chartopics+ 'ection -.5

    00) When pol(gons or histograms are constructed2 which a%is must show the true =ero orAoriginA

    !) he hori=ontal a%is.#) he vertical a%is.&) #oth the hori=ontal and vertical a%es.) Deither the hori=ontal nor the vertical a%is.!nswer+ #iff+ 1,e(words+ pol(gon2 histogramopics+ 'ection -.6

    05) When constructing charts2 the following is plotted at the class midpoints+!) fre/uenc( histograms.

    #) percentage pol(gons.&) cumulative relative fre/uenc( ogives.) !ll of the above.!nswer+ #iff+ 1,e(words+ percentage pol(gonopics+ 'ection -.6

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    !#$ -45

    ! surve( was conducted to determine how people rated the /ualit( of programming available ontelevision.

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    !#$ -46

    he following are the durations in minutes of a sample of long4distance phone calls made withinthe continental Enited 'tates reported b( one long4distance carrier.

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    5-)

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    67) Dorthern Ireland is e%periencing a bab( boom2 with the number of births rising for the fifth(ear in a row2 according to a ##& Dews report. Which of the following is best for displa(ingthis data!) ! "areto chart#) ! two4wa( classification table

    &) ! histogram) ! scatter plot!nswer+ iff+ 1,e(words+ time4series plotopics+ 'ection -.

    61) When stud(ing the simultaneous responses to two categorical /uestions2 we should set up a!) contingenc( table.#) fre/uenc( distribution table.&) cumulative percentage distribution table.

    ) histogram.!nswer+ !iff+ 1,e(words+ contingenc( tableopics+ 'ection -.

    6-) ata on 12577 students9 height were collected at a larger universit( in the $ast &oast. Whichof the following is the best chart for presenting the information!) ! pie chart.#) ! "areto chart.&) ! side4b(4side bar chart.) ! histogram.!nswer+ iff+ 1,e(words+ choice of chart2 histogramopics+ 'ection -.6

    6) ata on the number of part4time hours students at a public universit( worked in a week werecollected. Which of the following is the best chart for presenting the information!) ! pie chart.#) ! "areto chart.&) ! percentage table.) ! percentage pol(gon.!nswer+ iff+ 1,e(words+ choice of chart2 percentage pol(gonopics+ 'ection -.6

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    60) ata on the number of credit hours of -72777 students at a public universit( enrolled in a'pring semester were collected. Which of the following is the best for presenting theinformation!) ! pie chart.#) ! "areto chart.

    &) ! stem4and4leaf displa(.) ! contingenc( table.!nswer+ &iff+ 1,e(words+ choice of chart2 stem4and4leafopics+ 'ection -.6

    65) ! surve( of 157 e%ecutives were asked what the( think is the most common mistakecandidates make during job interviews. 'i% different mistakes were given. Which of thefollowing is the best for presenting the information!) ! bar chart.

    #) ! histogram.&) ! stem4and4leaf displa(.) ! contingenc( table.!nswer+ !iff+ 1,e(words+ choice of chart2 bar chartopics+ 'ection -.5

    66) Gou have collected information on the market share of 5 different search engines used b(E.'. Internet users in Fa( -77. Which of the following is the best for presenting theinformation!) ! pie chart.#) ! histogram.&) ! stem4and4leaf displa(.) ! contingenc( table.!nswer+ !iff+ 1,e(words+ choice of chart2 pie chartopics+ 'ection -.5

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    6) Gou have collected information on the consumption b( the 15 largest coffee4consumingnations. Which of the following is the best for presenting the shares of the consumption!) ! pie chart.#) ! "areto chart.&) ! side4b(4side bar chart.

    ) ! contingenc( table.!nswer+ #$%planation+ #) $ven though a pie chart can also be used2 the "areto chart is preferable forseparating the Avital fewA from the Atrivial man(.Aiff+ -,e(words+ choice of chart2 "areto chartopics+ 'ection -.5

    68) Gou have collected data on the appro%imate retail price 3in H) and the energ( cost per (ear3in H) of 15 refrigerators. Which of the following is the best for presenting the data!) ! pie chart.#) ! scatter chart.&) ! side4b(4side bar chart.) ! contingenc( table.!nswer+ #iff+ 1,e(words+ choice of chart2 scatter chartopics+ 'ection -.

    6;) Gou have collected data on the number of E.'. households activel( using online bankingandor online bill pa(ment from 1;;5 to -77. Which of the following is the best for presentingthe data!) ! pie chart.#) ! stem4and4leaf displa(.&) ! side4b(4side bar chart.) ! time4series plot.!nswer+ iff+ 1,e(words+ choice of chart2 time4series plotopics+ 'ection -.

    7) Gou have collected data on the monthl( seasonall( adjusted civilian unemplo(ment rate forthe Enited 'tates from 1;;8 to -77. Which of the following is the best for presenting the data!) ! contingenc( table.

    #) ! stem4and4leaf displa(.&) ! time4series plot.) ! side4b(4side bar chart.!nswer+ &iff+ 1,e(words+ choice of chart2 time4series plotopics+ 'ection -.

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    1) Gou have collected data on the annual average amount of cash rebate offered b( 6 differentbrands of automobiles sold in the E' in -776 and in -77. Which of the following is the best forpresenting the data!) ! contingenc( table.#) ! stem4and4leaf displa(.

    &) ! time4series plot.) ! side4b(4side bar chart.!nswer+ iff+ -,e(words+ choice of chart2 side4b(4side bar chartopics+ 'ection -.5

    -) Gou have collected data on the responses to two /uestions asked in a surve( of 07 collegestudents majoring in businessWhat is (our gender 3Fale B FK :emale B :) and What is (ourmajor 3!ccountanc( B !K &omputer Information '(stems B &K Farketing B F). Which of thefollowing is the best for presenting the data!) ! contingenc( table.#) ! stem4and4leaf displa(.&) ! time4series plot.) ! "areto chart.!nswer+ !iff+ -,e(words+ choice of chart2 contingenc( tableopics+ 'ection -.

    !#$ -4

    ! sample of -77 students at a #ig4en universit( was taken after the midterm to ask themwhether the( went bar hopping the weekend before the midterm or spent the weekend stud(ing2and whether the( did well or poorl( on the midterm. he following table contains the result.

    id Well in Fidterm id "oorl( in Fidterm

    'tud(ing for $%am 87 -7

    Went #ar >opping 7 7

    )

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    0)

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    8)

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    81)

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    80) !n insurance compan( evaluates man( numerical variables about a person before decidingon an appropriate rate for automobile insurance. ! person9s age is an e%ample of a ????????numerical variable.!nswer+ continuousiff+ 1

    ,e(words+ continuous random variable2 t(pes of dataopics+ 'ection -.1

    85) !n insurance compan( evaluates man( numerical variables about a person before decidingon an appropriate rate for automobile insurance. >ow long a person has been a licensed driver isan e%ample of a ???????? numerical variable.!nswer+ continuousiff+ -,e(words+ continuous random variable2 t(pes of dataopics+ 'ection -.1

    86) !n insurance compan( evaluates man( numerical variables about a person before decidingon an appropriate rate for automobile insurance. he number of tickets a person has received inthe last (ears is an e%ample of a ???????? numerical variable.!nswer+ discreteiff+ 1,e(words+ discrete random variable2 t(pes of dataopics+ 'ection -.1

    8) In purchasing an automobile2 there are a number of variables to consider. he bod( st(le ofthe car 3sedan2 coupe2 wagon2 etc.) is an e%ample of a ???????? variable.!nswer+ categoricaliff+ 1,e(words+ categorical random variable2 t(pes of dataopics+ 'ection -.1

    88) In purchasing an automobile2 there are a number of variables to consider. he classificationof the car as a subcompact2 compact2 standard2 or lu%ur( si=e is an e%ample of a ????????variable.!nswer+ categoricaliff+ 1,e(words+ categorical random variable2 t(pes of dataopics+ 'ection -.1

    8;) In purchasing an automobile2 there are a number of variables to consider. he color of the caris an e%ample of a ???????? variable.!nswer+ categoricaliff+ 1,e(words+ categorical random variable2 t(pes of dataopics+ 'ection -.1

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    ;7) Fost colleges admit students based on their achievements in a number of different areas.Whether a student has taken an( advanced placement courses is an e%ample of a ????????variable.!nswer+ categoricaliff+ 1

    ,e(words+ categorical random variable2 t(pes of dataopics+ 'ection -.1

    ;1) Fost colleges admit students based on their achievements in a number of different areas. hegrade obtained in senior level $nglish. 3!2 #2 &2 2 or :) is an e%ample of a ???????? variable.!nswer+ categoricaliff+ -,e(words+ categorical random variable2 t(pes of dataopics+ 'ection -.1

    ;-) Fost colleges admit students based on their achievements in a number of different areas. he

    total '! score achieved b( a student is an e%ample of a ???????? numerical variable.!nswer+ discreteiff+ -,e(words+ discrete random variable2 t(pes of dataopics+ 'ection -.1

    ;) he ean of 'tudents conducted a surve( on campus. he gender of the student is ane%ample of a ???????? variable.!nswer+ categoricaliff+ 1,e(words+ categorical random variable2 t(pes of dataopics+ 'ection -.1

    ;0) he ean of 'tudents conducted a surve( on campus. &lass designation 3:reshman2'ophomore2 Junior2 'enior) is an e%ample of a ???????? variable.!nswer+ categoricaliff+ 1,e(words+ categorical random variable2 t(pes of dataopics+ 'ection -.1

    ;5) he ean of 'tudents conducted a surve( on campus. Fajor area of stud( is an e%ample of a???????? variable.!nswer+ categorical

    iff+ 1,e(words+ categorical random variable2 t(pes of dataopics+ 'ection -.1

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    ;6) he ean of 'tudents conducted a surve( on campus. !verage '! score in mathematics isan e%ample of a ???????? numerical variable.!nswer+ continuousiff+ 1,e(words+ continuous random variable2 t(pes of data

    opics+ 'ection -.1

    ;) he ean of 'tudents conducted a surve( on campus. Lrade point average 3L"!) is ane%ample of a ???????? numerical variable.!nswer+ continuousiff+ 1,e(words+ continuous random variable2 t(pes of dataopics+ 'ection -.1

    ;8) he ean of 'tudents conducted a surve( on campus. Dumber of credits currentl( enrolledfor is an e%ample of a ???????? numerical variable.

    !nswer+ discreteiff+ 1,e(words+ discrete random variable2 t(pes of dataopics+ 'ection -.1

    ;;) he ean of 'tudents conducted a surve( on campus. Dumber of clubs2 groups2 teams2 andorgani=ations affiliated with on campus is an e%ample of a ???????? numerical variable.!nswer+ discreteiff+ 1,e(words+ discrete random variable2 t(pes of dataopics+ 'ection -.1

    177) ! personal computer user surve( was conducted. &omputer brand primaril( used is ane%ample of a ???????? variable.!nswer+ categoricaliff+ 1,e(words+ categorical random variable2 t(pes of dataopics+ 'ection -.1

    171) ! personal computer user surve( was conducted. Dumber of personal computers owned isan e%ample of a ???????? numerical variable.!nswer+ discreteiff+ 1,e(words+ discrete random variable2 t(pes of dataopics+ 'ection -.1

    17-) ! personal computer user surve( was conducted. he number of (ears using a personalcomputer is an e%ample of a ???????? numerical variable.!nswer+ continuousiff+ -,e(words+ continuous random variable2 t(pes of dataopics+ 'ection -.1

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    17) ! personal computer user surve( was conducted. >ours of personal computer use per weekis an e%ample of a ???????? numerical variable.!nswer+ continuousiff+ -,e(words+ continuous random variable2 t(pes of data

    opics+ 'ection -.1

    170) ! personal computer user surve( was conducted. "rimar( word processing package used isan e%ample of a ???????? variable.!nswer+ categoricaliff+ 1,e(words+ categorical random variable2 t(pes of dataopics+ 'ection -.1

    175) ! personal computer user surve( was conducted. he number of computer maga=inesubscriptions is an e%ample of a ???????? numerical variable.

    !nswer+ discreteiff+ -,e(words+ discrete random variable2 t(pes of dataopics+ 'ection -.1

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    !#$ -48

    he 'tem4and4eaf displa( below contains data on the number of months between the date acivil suit is filed and when the case is actuall( adjudicated for 57 cases heard in superior court.

    'tem eaves1 - 0 0 01 > 8 ; ;- - - - - 0- > 5 5 6 8 8 8 ; 7 7 1 1 1 > 5 80 7 - 00 > 5 5 ;5 1 1 - 05 > 6 6

    6 1 56 > 8

    Note+ 1 means the Alow teensA M 172 112 1-2 12 or 10K 1> means the Ahigh teensA M 152 16212 182 or 1;K - means the Alow twentiesA M -72 -12 --2 -2 or -02 etc.

    176)

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    17;)

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    !#$ -4;

    he 'tem4and4eaf displa( represents the number of times in a (ear that a random sample of 177AlifetimeA members of a health club actuall( visited the facilit(.

    'tem eaves ?? ??7 71-----00566666668;;;;1 1111----000005566;;;;- 77711--05555688; 7777006;;0 71105565 776 8 68 ; 7-0

    110)

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    118)

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    !#$ -417

    he fre/uenc( distribution below represents the rents of -57 randoml( selected federall(subsidi=ed apartments in Finneapolis.

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    !#$ -411

    he histogram below represents scores achieved b( -77 job applicants on a personalit( profile.

    1-;)

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    1)

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    18)

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    10-)

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    100) he point halfwa( between the boundaries of each class interval in a grouped fre/uenc(distribution is called the ????????.!nswer+ class midpointiff+ 1,e(words+ cumulative percentage pol(gon2 fre/uenc( distribution

    opics+ 'ection -.0 N 'ection -.6

    105) ! ???????? is a vertical bar chart in which the rectangular bars are constructed at theboundaries of each class interval.!nswer+ histogramiff+ 1,e(words+ histogramopics+ 'ection -.6

    106) It is essential that each class grouping or interval in a fre/uenc( distribution be ????????.!nswer+ non4overlapping and of e/ual width

    iff+ -,e(words+ fre/uenc( distribution2 class intervalopics+ 'ection -.0

    10) In order to compare one large batch of numerical data to another2 a ???????? distributionmust be developed from the fre/uenc( distribution.!nswer+ relative fre/uenc( or percentageiff+ 1,e(words+ relative fre/uenc( distribution2 percentage distributionopics+ 'ection -.0

    108) When comparing two or more large batches of numerical data2 the distributions beingdeveloped should use the same ????????.!nswer+ class boundaries.iff+ 1,e(words+ class boundariesopics+ 'ection -.0

    10;) he width of each class grouping or interval in a fre/uenc( distribution should be????????.!nswer+ the same or e/ualiff+ 1,e(words+ class interval2 fre/uenc( distributionopics+ 'ection -.0

    157) In constructing a pol(gon2 each class grouping is represented b( its ???????? and thenthese are consecutivel( connected to one another.!nswer+ midpointiff+ 1,e(words+ pol(gon2 class interval2 midpointopics+ 'ection -.02 'ection -.52 N 'ection -.6

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    151) ! ???????? is a summar( table in which numerical data are tallied into class intervals orcategories.!nswer+ fre/uenc( distributioniff+ 1,e(words+ fre/uenc( distribution2 class interval

    opics+ 'ection -.0

    15-) rue or :alse+ he possible responses to the /uestion A>ow long have (ou been living at(our current residenceA are values from a continuous variable.!nswer+

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    158) rue or :alse+ he answer to the /uestion AWhat is (our favorite colorA is an e%ample ofan ordinal scaled variable.!nswer+ :!'$iff+ 1,e(words+ nominal scale

    opics+ 'ection -.1

    15;) rue or :alse+ he answer to the /uestion A>ow do (ou rate the /ualit( of (our businessstatistics courseA is an e%ample of an ordinal scaled variable.!nswer+

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    165) rue or :alse+ Whether the universit( is private or public is an e%ample of a categoricalvariable.!nswer+

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    1-) rue or :alse+ he /ualit( 3AterribleA2 ApoorA2 AfairA2 AacceptableA2 Aver( goodA andAe%cellentA) of a da( care center is an e%ample of a nominal scaled variable.!nswer+ :!'$iff+ 1,e(words+ nominal scale2 ordinal scale

    opics+ 'ection -.1

    1) rue or :alse+ he /ualit( 3AterribleA2 ApoorA2 AfairA2 AacceptableA2 Aver( goodA andAe%cellentA) of a da( care center is an e%ample of a numerical variable.!nswer+ :!'$iff+ 1,e(words+ categorical random variableopics+ 'ection -.1

    10) rue or :alse+ he amount of alcohol consumed b( a person per week will be measured onan interval scale.

    !nswer+ :!'$iff+ 1,e(words+ interval scale2 ratio scaleopics+ 'ection -.1

    15) rue or :alse+ he amount of alcohol consumed b( a person per week is an e%ample of acontinuous variable.!nswer+

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    1;) rue or :alse+ he amount of calories contained in a pack of 1-4ounce cheese is an e%ampleof a discrete variable.!nswer+ :!'$iff+ 1,e(words+ discrete random variable2 continuous random variable

    opics+ 'ection -.1

    187) rue or :alse+ he amount of time a student spent stud(ing for an e%am will be measuredon a ratio scale.!nswer+

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    1;-) rue or :alse+ etermining the class boundaries of a fre/uenc( distribution is highl(subjective.!nswer+

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    1;;) rue or :alse+ he main principle behind the "areto diagram is the abilit( to track the AvitalfewA from the Atrivial man(.A!nswer+

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    -75) rue or :alse+ !pple &omputer2 Inc. collected information on the age of their customers.he (oungest customer was 1- and the oldest was -. o stud( the distribution of the ageamong its customers2 it can use a percentage pol(gon.!nswer+

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    -11) rue or :alse+ In general2 a fre/uenc( distribution should have at least 8 class groups but nomore than -7.!nswer+ :!'$iff+ 1,e(words+ number of classes

    opics+ 'ection -.0 N 'ection -.6

    -1-) rue of :alse+ o determine the width of class interval2 divide the number of class groupsb( the range of the data.!nswer+ :!'$iff+ 1,e(words+ class intervalopics+ 'ection -.0

    -1) rue or :alse+ he percentage pol(gon is formed b( having the lower boundar( of eachclass represent the data in that class and then connecting the se/uence of lower boundaries attheir respective class percentages.!nswer+ :!'$iff+ 1,e(words+ percentage pol(gonopics+ 'ection -.6

    -10) rue or :alse+ ! pol(gon can be constructed from a bar chart.!nswer+ :!'$iff+ -,e(words+ pol(gonopics+ 'ection -.6

    -15) o evaluate two categorical variables at the same time2 a ???????? could be developed.!nswer+ contingenc( or cross4classification table or side4b(4side bar chartiff+ 1,e(words+ contingenc( table2 cross4classification tableopics+ 'ection -.

    -16)

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    !#$ -41

    he table below contains the opinions of a sample of -77 people broken down b( gender aboutthe latest congressional plan to eliminate anti4trust e%emptions for professional baseball.

    For Neutral Against TotalsFemale 8 50 1- 170Male 1- 6 08 ;6Totals 57 ;7 67 -77

    -1)

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    --1)

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    --8)

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    -5)

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    8iff+ -,e(words+ relative fre/uenc( distribution2 percentage distributionopics+ 'ection -.0

    54

    Copyright 2011 Pearson Education, Inc.

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    -00)

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    -06)

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    !#$ -415

    he table below contains the number of people who own a portable @ pla(er in a sample of677 broken down b( gender.

    On a PortableD!D Pla"er Male Female

    #es ;6 07No --0 -07

    -08)

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    -5-)

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    -5;)

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    -66)

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    -6;)

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    --)

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    !#$ -418

    he following table presents total retail sales in millions of dollars for the leading apparelcompanies during !pril -778 and !pril -77;.

    APPA$%L COMPAN# April 2&&' April 2&&Lap 1215;.77 ;6-

    JQ 81. 8;;

    imited 5;6.5 6-7.0

    ,ohl9s 500.; 68.;

    Dordstrom 07-.6 018.

    albots 1;.; 17.1

    !nna(lor 110.- 1-0.8

    -0)

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    -5)