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.
-What is the correct notation for the parameter of interest?

A) $\mu$ ₁ - $\mu$ ₂
B) $µ_{d}$
C) $\overline{x_1}$ - $\overline{x_2}$
D) $\overline{d}$