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.If we use the pooled t-test to see if there is a difference between the two groups, the degrees of freedom for the appropriate t-statistic is ________________________ .

A) 36
B) 34
C) 20
D) 16
E) None of the above.