Data Were Collected on Annual Personal Time (In Hours) Taken

Multiple Choice

Data were collected on annual personal time (in hours) taken by a random sample of 16 women and 7 men employed by a medium sized company.The women took an average of 24.75 hours of personal time per year with a standard deviation of 2.84 hours.The men took an average of 21.89 hours of personal time per year with a standard deviation of 3.29 hours.The correct 90% confidence interval for the difference between women and men in the average number of hours of personal time taken per year is ________________________ .

A) 0.30 to 5.48 hours
B) -0.50 to 3.21 hours
C) -4.67 to -0.62 hours
D) 1.27 to 6.89 hours
E) None of the above.