A researcher randomly chooses 6 fathers who have adult sons and records the fathers' and sons' heights to get the data below. Find out if sons are taller than their fathers at the = 0.1 level of significance. The normal probability plot and box plot indicate that the differences are approximately normally distributed with no outliers.
Observation Height of father (inches) Height of son (inches)
1 73.6 77.9
2 67.7 66.5
3 74.9 75.8
4 65.9 64.4
5 72.2 76.0
6 68.5 66.4
Using the differences (father's height) - (son's height), what is your conclusion about H0?
A. Do not reject because t0 is less than - ta.
B. Reject H0 because t0 is less than - ta.
C. Reject H0 because t0 is greater than - ta.
D. Do not reject H0 because t0 is greater than - ta.