Question

Hypothesis Test for a Populatio X G Commute times in the US are x + /a2/rest/assessement/deliver?context=b4f6cec30a0001dc699ac1b7bb3531eb&attempt=1 Countdown: Days:-o Time:-03:12:26 The group of 50 students in the study reported an average of 4.21 drinks per with a standard deviation of 3.43 drinks. Find the p-value for the hypothesis test. The p-value should be rounded to 4-decimal ple Question 12 Commute times in the U.S. are heavily skewed to the right. We select a Type numbers in the boxes random sample of 520 people from the 2000 U.S. Census who reported a non-10 points zero commute time. In this sample, the mean commute time is 28.1 minutes with a standard deviation of 19.2 minutes. Can we conclude from this data that the mean commute time in the U.S. is less than half an hour? Conduct a hypothesis test at the 5%6 level of significance. What is the p-value for this hypothesis test? (Your answer should be rounded to 4 decimal places.) Question 13 Dean Halverson recently read that full-time college students study 20 hours each week. She decides to do a study at her university to see if there is evidence that students study an average of less than 20 hours each week. A

Answer 1

Answer - 12: The statistical software output for this problem is:

One sample T summary hypothesis test: Mean of population Ho H30 HA 30 Hypothesis test results: Mean Sample Mean Std. Err. P-value DF T-Stat 0.0122 28.1 0.8419757 519-2.2565972

Hence,

p - Value = 0.0122