# STA 205 Lecture 4: Packet 4 - Hypothesis Test for P

## Document Summary

Packet 4: hypothesis test for the population proportion. Textbook pages: 450 461; 516 523. Step 1: state the hypotheses to be tested. Step 2: set the significance level for the test. Step 3: calculate the test statistic and p-value based upon the sample collected. i s p e t. Step 4: make a decision and interpret the results. t s e. A conjecture about a population parameter on data from a sample. Significance level point for when a probability is classified as small and unusual the cut off common values. Fptp probability the probability of observing a test statistic more extreme than the calculated value in the direction of the alternative hypothesis step 4 make a decision and interpret the results decision reject ho if probability l 2. X probability j interpert reject ho evidence to support ha significant. Always looking for small probabilities 0 reject null page 2.