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 20 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 20.5 hours of personal time per year with a standard deviation of 2.75 hours.The pooled estimate of the variance is ________________________ .

A) 264.6715
B) 2.790
C) 7.785
D) 12.998
E) None of the above.