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Author Question: In order to estimate the difference between the yearly incomes of marketing managers in the East and ... (Read 54 times)

bvyeehaw

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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.



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Marked as best answer by bvyeehaw on Mar 25, 2023

sin

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bvyeehaw

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Reply 2 on: Mar 25, 2023
Great answer, keep it coming :)


samiel-sayed

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Reply 3 on: Yesterday
Wow, this really help

 

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