Question

Do male and female servers work the same number of hours? A sample of 19 female servers worked an average of 36 hours per week, with a standard deviation of 2. A sample of 27 male servers worked an average of 40 hours per week, with a standard deviation of 5. Let μ1 and μ2 represent the typical number of hours worked by all female and male servers, respectively. Construct a 99% confidence interval for μ1−μ2, assuming normal populations with unequal variances.

Enter your answer rounded to three decimal places. Round your critical value to THREE decimal places.

Lower bound on CI =

Upper bound on CI =

Which of the following does your data suggest?

A) Female and male servers work about the same number of hours

B) Male servers work more hours

C) Female servers work more hours

Answer 1

The statistical software output for this problem is:

Hence,

Lower bound = -6.897

Upper bound = -1.103

Which of the following does your data suggest?

B) Male servers work more hours

answered by: anonymous