To test the belief that sons are taller than their fathers, a
student randomly selects 13 fathers who have adult male children.
She records the height of both the father and son in inches and
obtains the following data. Note: A normal probability plot and
boxplot of the data indicate that the differences are approximately
normally distributed with no outliers
Height of
Father,71.9,71.8,68.5,73.2,70.9,69.8,69.3,72.3,71.9,70.2,69.8,69.8,69.1
Xi Height of Son, Yi 76.8, 75.2, 71.0, 75.0, 72.0, 70.3, 69.4,
71.7, 70.6, 68.4, 67.3, 66.3,...