Statistics

ourses / SC/ MATH 1 13 1 6 - Introduction to Statistics Trail Cuz ly (12). One large company studies their employee's commute time. It was reported that the mean commute time (one way) is 45 mins. As people tends to move out of center of city recently. They believe the mean commute time (one way) increases. A random sample of 9 one way commute times were selected. The sample mean is 48 mins. Assume the commute time is normal with standard deviation o = 5 mins. 1(6). Use the P-value method to test if the mean commute time (one way) increases. Let significance level be 0.01. 2(6). Follow the above hypothesis test, calculate the probability of type II error (50). A Y B E E E Go