The Web site salary.com reports that the mean salary for marketing managers is $82,000. A random sample of 36 marketing managers taken during the recession showed a mean salary of $78,000. Assume that σ = $8000. Test using level of significance α = 0.0 3 whether the population mean salary for marketing managers differs after the recession. Show all five steps (I hypothesis, II compute test statistic, III find rejection region or p value, V decision, VI conclusion)
The Web site salary.com reports that the mean salary for marketing managers is $82,000. A random sample of 36 marketing managers taken during the recession showed a mean salary of $78,000. Assume that σ = $8000. Test using level of significance α = 0.0 3 whether the population mean salary for marketing managers differs after the recession. Show all five steps (I hypothesis, II compute test statistic, III find rejection region or p value, V decision, VI conclusion)
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.3: Measures Of Spread
Problem 1GP
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