# STA 205 Lecture 9: Packet 9 - Hypothesis Test for the Mean (2)

## Document Summary

2 set significance level o and give the decision rule. 3 calculate the test and statistic g its associated probability p value score table. Example: the flying pig marathon is held in cincinnati every may. The statcrunch output below summarizes the time it took for all runners in 2012 to finish the 26. 2 mile race. An organizer of the marathon plans to sample 35 finishers from. 2016 to see if the time it takes to complete the race has changed. two sided. Describe the sampling distribution of the sample mean finish time when samples of refers to all. Packet 9: one-sample hypothesis test for the population mean. Textbook pages: 586 589; 597 601. The sample of 35 runners is taken and the sample mean is found to be 4. 569 hours. Use the sample to test the claim made by the organizer at a significance level of 0. 05.