The amount of time the husband and the wife spend on house work is measured for 15 women and their 15 husbands. What are the appropriate degrees of freedom for the multiplier t* for a confidence interval for the difference in mean time spent on housework between husbands and wives?

Question

Quizplus · Accepted Answer

The degrees of freedom for a paired t-test, which is used here since the data is paired (husbands and wives), is n-1, where n is the number of pairs. Here, n = 15, so the degrees of freedom is 15 - 1 = 14.

The Amount of Time the Husband and the Wife Spend