Use the Following Information for Questions:
We Wish to Conduct

Use the following information for questions:
We wish to conduct a hypothesis test to determine if, on average, the mother in a family spends more time doing house work per week than the father, for families where both parents have a full time job.
-Suppose that in reality, mothers and fathers spend an equal amount of time, on average, doing housework each week. What would be the mean of the sampling distribution of the sample mean difference in time, based on random samples taken from the population under study (mothers and fathers from families where both parents have a full time job) ?

A) $\mu$ ₁ - $\mu$ ₂
B) $µ_{d}$
C) $\overline{d}$
D) 0