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 determine if there is evidence that the cholesterol level for the husband tends to be higher than the cholesterol level for the wife.

Suppose the above analysis, subtracting the wife's level from her husband's level, results in a test statistic of t = 1.22. What is the p-value for this comparison?

Group of answer choices

pt(1.22,19,lower.tail=TRUE) = 0.8813039

pt(1.22,9,lower.tail=FALSE) = 0.1267339

2*pt(1.22,9,lower.tail=FALSE) = 0.2534679

pt(1.22,19,lower.tail=FALSE) = 0.1186961