for 7d, show working, formula and numbers inputted to the formula

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for 7d, show working, formula and numbers inputted to the formula

annual trip frequencies to the nearest state park:
where the subscript '1' denotes the white population and the subscript '2' denotes the
7. A survey of the white and nonwhite population in a local area reveals the following
= 4.1,
= 3.1,
s = 14.3,
s= 12.0,
%3D
n, = 20
ng = 16
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.
G. 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.
e. Repeat parts (a)–(d), assuming sample sizes of n, = 24 and n, = 12.
Tost the bunothes
Transcribed Image Text:annual trip frequencies to the nearest state park: where the subscript '1' denotes the white population and the subscript '2' denotes the 7. A survey of the white and nonwhite population in a local area reveals the following = 4.1, = 3.1, s = 14.3, s= 12.0, %3D n, = 20 ng = 16 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. G. 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. e. Repeat parts (a)–(d), assuming sample sizes of n, = 24 and n, = 12. Tost the bunothes
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