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Author Question: In order to estimate the difference between the yearly incomes of marketing managers in the East and ... (Read 79 times)

bvyeehaw

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on: Mar 25, 2023

In order to estimate the difference between the yearly incomes of marketing managers in the East and West of the United States, the following information was gathered.

East

West

n1 = 40n2 = 45
= 72 (in $1,000) = 78 (in $1,000)
s1 = 6 (in $1,000)s2 = 8 (in $1,000)


a.Develop an interval estimate for the difference between the average yearly incomes of the marketing managers in the East and West.  Use α = 0.05.
b.At 95% confidence, use the p-value approach and test to determine if the average yearly income of marketing managers in the East is significantly different from the West.

Essentials of Statistics for Business and Economics ¦ Anderson, Sweeney, Williams, Camm, Cochran ¦ 7th Edition
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Marked as best answer by bvyeehaw on Mar 25, 2023

sin

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Reply #1 on: Mar 25, 2023
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bvyeehaw

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Reply 2 on: Mar 25, 2023
Wow, this really help

shailee

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Reply 3 on: Yesterday
Great answer, keep it coming :)

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