Ten Couples Are Participating in a Small Study on Cholesterol

Multiple Choice

Ten couples are participating in a small study on cholesterol.Neither the man nor the woman in each couple is known to have any problems with high cholesterol.The researcher conducting the study wishes to use the sign test for matched pairs to determine if there is evidence that the cholesterol level for the husband tends to be higher than the cholesterol level for the wife.The cholesterol measurements for the 10 couples are given below. What is the (approximate) value of the P-value?

A) 0.039
B) 0.055
C) 0.079
D) 0.172