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kmonette kmonette
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Independent random samples taken at two companies provided the following information regarding annual salaries of the employees.

 

Company A

Company B

Sample Size

72

50

Sample Mean (in $1,000)

48

43

Population Standard Deviation (in $1,000)

12

10


a.We want to determine whether or not there is a significant difference between the average salaries of the employees at the two companies. Compute the test statistic.
b.Compute the p-value; and at 95% confidence, test the hypotheses.

Textbook 
Essentials of Statistics for Business and Economics

Essentials of Statistics for Business and Economics


Edition: 7th
Authors:
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webmom2008webmom2008
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kmonette Author
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A year ago
this is exactly what I needed
annielin111
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This calls for a celebration Person Raising Both Hands in Celebration
dianeflunder
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2 hours ago
Thank you, thank you, thank you!
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