hypothesis testing
DESCRIPTION
Hypothesis Testing. Power factors. Sample Size Increase. Sample Size Decrease. Effect Size Increase. Effect Size Decrease. Standard Deviation Decrease. Standard Deviation Increase. Alpha Decrease. Tails Decrease. Power factors. Power calculations. - PowerPoint PPT PresentationTRANSCRIPT
1-Beta (β)
Increase in this factor will? Affect power how?
Alpha (α) ?
Effect Size ?
Sample Size (N) ?
Standard Deviation (σX) ?
Tails of Test ?
Power factors
1-Beta (β)
Increase in this factor will? Affect power how?
Alpha (α) Increase power
Effect Size Increase power
Sample Size (N) Increase power
Standard Deviation (σX) Decrease power
Tails of Test Decrease power
Power factors
Factor
How much control does
the experimente
r have?Sample Size A lotStandard Deviation of Population Scores
A little
Effect Size NoneAlpha Level Very Little
Number of Tails Very Little
Only used in this class with single sample Z tests where population mean and standard deviation is given/known
Otherwise , it would be a calculation horror show
Power calculations