Week 10

Single Sample Hypothesis Testing

General Procedures Used

How to Specify Hypotheses

Symbols

Null

Alternative

Procedures Used to Reject Null

Z Formula with Population Values

Directional verses Nondirectional Alternative Hypothesis

Critical Values Used for Hypothesis Testing

Know When One-Tailed Test is Appropriate

Know How to Estimate the Population S.D. from a Sample

("little" s)

Distinction Between ("Big") S and ("Little") s

Characteristics of s

Estimation of Standard Error of the Mean from a Sample ()

Computing the Approximate Z

How "Z" is Used

Miscellaneous Issues

Statistical verses Practical Differences

Reporting Z in Terms of Probability

Errors in Hypothesis Testing

Multiple Experiments and Error Rates