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 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. Assume that the distribution of differences is Normal enough to proceed, and assume that the sampling was random. a. Find the sample mean for University A. S (Round to the nearest cent as needed.)
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 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. Assume that the distribution of differences is Normal enough to proceed, and assume that the sampling was random. a. Find the sample mean for University A. S (Round to the nearest cent as needed.)
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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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.
Click the icon to view the table of prices.
a. Find the sample mean for University A.
$
(Round to the nearest cent as needed.)
Transcribed Image Text:Data table
University A ($)
University B ($)
51
58
87
100
83
84
81
82
58
59
70
76
46
40
76
77
51
57
67
73
59
60
45
45
65
78
73
78
82
89
......
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