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Independent random samples taken at two companies provide the following information regarding the anual salaries of the employees.
WhitneyCo. Max Co.
sample size 72 50
Sample mean (in$1000) 48 43
Sample standard deviation 12 10
1.at 95% confidence test to determine whether or not there is significant difference between the average salaries of the employees of the two companies.
2. Compute the P-value.
Which of the following assumptions is not made for the F-test for comparing three or more means?
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