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The prices of a sample of books at University A were obtained by two statistics students. Then the cost of books for the same subjects​ (at the same​ level) were obtained for University B. Assume that the distribution of differences is Normal enough to​ proceed, and assume that the sampling was random. a. First find both sample means and compare them. b. Test the hypothesis that the population means are​ different, using a significance level of 0.05. University A ($) University

The prices of a sample of books at University A were obtained by two statistics students. Then the cost of books for the same subjects​ (at the same​ level) were obtained for University B. Assume that the distribution of differences is Normal enough to​ proceed, and assume that the sampling was random. a. First find both sample means and compare them. b. Test the hypothesis that the population means are​ different, using a significance level of 0.05. University A ($) University

MATLAB: An Introduction with Applications
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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The prices of a sample of books at University A were obtained by two statistics students. Then the cost of books for the same subjects​ (at the same​ level) were obtained for University B. Assume that the distribution of differences is Normal enough to​ proceed, and assume that the sampling was random.
a. First find both sample means and compare them.
b. Test the hypothesis that the population means are​ different, using a significance level of 0.05.
University A ($) University B ($)
53 59
74 71
54 57
94 101
58 63
59 61
54 50
47 46
43 50
86 89
78 83
73 88
50 52
63 71
88 95

 

Find the test statistic for this test. t= (Round to two decimal places as​ needed.)

Find the​ p-value for this test. ​p-value= (Round to three decimal places as​ needed.)

What is the conclusion for this​ test?

The prices of a sample of books at University A were obtained by two statistics students. Then the cost of books for the same subjects (at the same level) were obtained for University B. Assume that the distribution of differences is Normal enough to proceed, and assume that the sampling was random. a. First find both sample means and compare them. b. Test the hypothesis that the population means are different, using a significance level of 0.05. E Click the icon to view the table of prices. T=| |(Rouna to two aecımai piaces as neeaea.) Find the p-value for this test. p-value = (Round to three decimal places as needed.) What is the conclusion for this test? O A. Reject Ho. There is not evidence that mean of the differences is not 0. O B. Do not reject Ho. There is evidence that mean of the differences is not 0. O C. Do not reject Hn. There is not evidence that mean of the differences is not 0. O D Reiect H. There is evidence that mean of the differences is not 0
Transcribed Image Text:The prices of a sample of books at University A were obtained by two statistics students. Then the cost of books for the same subjects (at the same level) were obtained for University B. Assume that the distribution of differences is Normal enough to proceed, and assume that the sampling was random. a. First find both sample means and compare them. b. Test the hypothesis that the population means are different, using a significance level of 0.05. E Click the icon to view the table of prices. T=| |(Rouna to two aecımai piaces as neeaea.) Find the p-value for this test. p-value = (Round to three decimal places as needed.) What is the conclusion for this test? O A. Reject Ho. There is not evidence that mean of the differences is not 0. O B. Do not reject Ho. There is evidence that mean of the differences is not 0. O C. Do not reject Hn. There is not evidence that mean of the differences is not 0. O D Reiect H. There is evidence that mean of the differences is not 0
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