Question 4Commute times in the U.S. are heavily skewed to the right. We select a random sample of 490people from the 2000 U.S. Census who reported a non-zero commute time.In this sample, the mean commute time is 28.3 minutes with a standard deviation of 18.7 minutes. Can we concludefrom this data that the mean commute time in the U.S. is less than half an hour? Conduct a hypothesis test at the 5%level of significance.What is the p-value for this hypothesis test?(Your answer should be rounded to 4 decimal places.)

Commute times in the U.S. are heavily skewed to the right. We select a random sample of 490 people…

Answered: What is the p-value for this hypothesis…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Find the p-value for a left-tailed hypothesis test with a test statistic of z= -1.25
The P-value for a hypothesis test is shown. Use the P-value to decide whether to reject H, when the level of significance is (a) a = 0.01, (b) a = 0.05, and (c) a = 0.10. P= 0.0406 (a) Do you reject or fail to reject H, at the 0.01 level of significance? O A. Reject H, because the P-value, 0.0406, is less than a = 0.01. O B. Fail to reject H, because the P-value, 0.0406, is less than a = 0.01. OC. Reject H, because the P-value, 0.0406, is greater than a = 0.01. O D. Fail to reject H, because the P-value, 0.0406, is greater than a = 0.01. (b) Do you reject or fail to reject H, at the 0.05 level of significance? O A. Fail to reject H, because the P-value, 0.0406, is greater than a= 0.05. O B. Reject H, because the P-value, 0.0406, is less than a = 0.05. O C. Reject H, because the P-value, 0.0406, is greater than a = 0.05. O D. Fail to reject H, because the P-value, 0.0406, is less than a = 0.05. (c) Do you reject or fail to reject H, at the 0.10 level of significance? O A. Reject H,…
Why would it make sense to call the hypothesis test as a marginal or partial test?
In this case, p-value is greater. So null hypothesis should not be rejected, correct?
WHen writing a null hypothesis for a two sample t test. Do you write U1 = U2 or U1 - U2 = 0? Or do both of them work?
4. Explain the procedure for testing a hypothesis using the P-value approach? What is the criterion for judging whether to reject the null hypothesis?
What Is a Hypothesis? What Is Hypothesis Testing? What is the Five-Step Procedure for Testing a Hypothesis?

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