Salary information regarding male and female employees of a large company is shown below.
Male
Female
Sample Size64
36
Sample Mean Salary (in $1000)45
41
Population Variance (
)128
72
?
If you are interested in testing whether or not the population average salary of males is significantly greater than that of females, the p-value is
A. .0228.
B. .0455.
Answer: A
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