Use the “Married Couples’ Heights” data and the answers found in Exercise 13. 65 to make the following estimates.
a. Give a point estimate for the mean husband height for a wife height of 59 inches.
b. Give a 95% confidence interval for the mean husband height for a wife height of 59 inches.
c. Give a 95% prediction interval for the husband height expected for a wife of 59 inches.
d. Answer parts a, b, and c for x = 68