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. Ta Pdifference U Data Table O E. Ho: Hdifference =0 Ha Hdifference > 0 University A (S) University B ($) 80 69 71 59 68 Find the test statistic for this test. 70 61 68 51 t=(Round to two decimal places as needed.) Find the p-value for this test. 66 65 74 p-value = (Round to three decimal places as needed.) 85 58 81 What is the conclusion for this test? 60 66 70 73 47 62 64 O A. Reject Ho. There is not evidence that mean of the differences is n 58 47 O B. Do not reject Ho. There is not evidence that mean of the differend 83 87 76 80 O C. Reject Ho. There is evidence that mean of the differences is not 0 78 71 O D. Do not reject Ho. There is evidence that mean of the differences is
The prices of a sample of books at University A were obtained by two statistics students. Then the cost of books for the same subjects (at the same level) were obtained for University B. Assume that the distribution of differences is Normal enough to proceed, and assume that the sampling was random. a. First find both sample means and compare them. b. Test the hypothesis that the population means are different, using a significance level of 0.05. E Click the icon to view the table of prices. Ta Pdifference U Data Table O E. Ho: Hdifference =0 Ha Hdifference > 0 University A (S) University B ($) 80 69 71 59 68 Find the test statistic for this test. 70 61 68 51 t=(Round to two decimal places as needed.) Find the p-value for this test. 66 65 74 p-value = (Round to three decimal places as needed.) 85 58 81 What is the conclusion for this test? 60 66 70 73 47 62 64 O A. Reject Ho. There is not evidence that mean of the differences is n 58 47 O B. Do not reject Ho. There is not evidence that mean of the differend 83 87 76 80 O C. Reject Ho. There is evidence that mean of the differences is not 0 78 71 O D. Do not reject Ho. There is evidence that mean of the differences is
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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How do you find the p value & the t stats?
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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.
E Click the icon to view the table of prices.
la Pdifference U
Data Table
O E. Ho: Hdifference =0
Ha: Hdifference > 0
University A (S)
University B ($)
Find the test statistic for this test.
70
80
61
69
t=(Round to two decimal places as needed.)
71
68
51
66
59
Find the p-value for this test.
68
65
74
p-value = (Round to three decimal places as needed.)
81
85
What is the conclusion for this test?
60
58
62
66
64
70
O A. Reject Hn. There is not evidence that mean of the differences is n
73
58
47
47
87
76
71
O B. Do not reject Ho. There is not evidence that mean of the differend
83
80
O C. Reject Ho. There is evidence that mean of the differences is not 0
78
O D. Do not reject Ho. There is evidence that mean of the differences i
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