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* A survey of the white and nonwhlte population In a local area reveals the following annual trip frequencies to the nearest state park: = 4.1, I = 3.1, si = 14.3, s= 12.0, n, = 20 n2 = 16 where the subscript '1' denotes the white population and the subscript '2' denotes the nonwhite population. a. Assume that the variances are equal, and test the null hypothesis that there is no difference between the park-going frequencies of whites and nonwhites. b. Repeat the exercise, assuming that the variances are unequal. C. Find the p-value associated with the tests in parts (a) and d. Associated with the test in part (a), find a 95% confidence interval for the difference in means

* A survey of the white and nonwhlte population In a local area reveals the following annual trip frequencies to the nearest state park: = 4.1, I = 3.1, si = 14.3, s= 12.0, n, = 20 n2 = 16 where the subscript '1' denotes the white population and the subscript '2' denotes the nonwhite population. a. Assume that the variances are equal, and test the null hypothesis that there is no difference between the park-going frequencies of whites and nonwhites. b. Repeat the exercise, assuming that the variances are unequal. C. Find the p-value associated with the tests in parts (a) and d. Associated with the test in part (a), find a 95% confidence interval for the difference in means

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.6: Summarizing Categorical Data
Problem 10CYU
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-> O YouTube N Netflix D Disney+ 2 WhatsApp OLD Apps M Gmail 9a574d1b-1963-4c... 2 / 5 100% + 日の INFERENTIAL STATISTICS 183 A survey of the white and nonwhite population In a local area reveals the following anhual trip frequencies to the nearest state park: X, = 4.1, Iz = 3.1, si = 14.3, s= 12.0, %3D ny = 20 ną =16 where the subscript '1' denotes the white population and the subscript '2' denotes the nonwhite population. Assume that the variances are equal, and test the null hypothesis that there is no difference between the park-going frequencies of whites and nonwhites. b. Repeat the exercise, assuming that the variances are unequal. a. C. Find the p-value associated with the tests in parts (a) and (b). d. Associated with the test in part (a), find a 95% confidence interval for the difference in means. е. Repeat parts (a)-(d), assuming sample sizes of n, = 24 and n, 12. 8. Test the hypothesis that two communitio
Transcribed Image Text:-> O YouTube N Netflix D Disney+ 2 WhatsApp OLD Apps M Gmail 9a574d1b-1963-4c... 2 / 5 100% + 日の INFERENTIAL STATISTICS 183 A survey of the white and nonwhite population In a local area reveals the following anhual trip frequencies to the nearest state park: X, = 4.1, Iz = 3.1, si = 14.3, s= 12.0, %3D ny = 20 ną =16 where the subscript '1' denotes the white population and the subscript '2' denotes the nonwhite population. Assume that the variances are equal, and test the null hypothesis that there is no difference between the park-going frequencies of whites and nonwhites. b. Repeat the exercise, assuming that the variances are unequal. a. C. Find the p-value associated with the tests in parts (a) and (b). d. Associated with the test in part (a), find a 95% confidence interval for the difference in means. е. Repeat parts (a)-(d), assuming sample sizes of n, = 24 and n, 12. 8. Test the hypothesis that two communitio
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