Population Mean,

Sample Mean,

Range = largest value smallest value

Deviation,

(xi is the number, x is the mean)

Average Deviation,

Mean Squared Deviation,

Population variance, 2Sample Variance, S2

Sample Variance

Sample Standard deviation

Sample Standard deviation

Population Standard deviation

Standardized score and value

Standard Error of the Mean

Confidence Interval,

Small sampling Error,

Confidence Interval,

Confidence Interval,

Sample Size Formula,

Standard Error of proportion,

Confidence Interval of a Proportion,

Sample size for a proportion,

p = Estimated proportion of success

q = (1-p) or estimated proportion of failures

Critical Values of (Critical Value Upper Limit

Critical Value Lower Limit

Observed value of Z,

Alternative way of testing Hypothesis Confidence Interval Estimate Using the t-distribution (t test)

Alternative Univariate Hypothesis Test t-Test

Chi-Square Testx = chi-square statistics

Oi = observed frequency in the ith cell

Ei = expected frequency on the ith cell

Chi-Square Test Estimation for Expected Number for Each Cell Ri = total observed frequency in the ith row

Cj = total observed frequency in the jth column

n = sample size

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