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A study to determine the relationship between the height of a son and the height of...

A study to determine the relationship between the height of a son and the height of his mother and father used a random sample size of n=65. The resulting multiple regression equation was = 22.97 + .30x1 + .41x2 where y is the height of the son, x1 is the height of the mother, x2 is the height of the father. All measurements are in inches. The standard error for b1 is .06786 and the standard error for b2 is .05107.

a. Predict the height of the son if he height of the mother is 74 inches and the height of the father is 70 inches.

b. Find the confidence interval for the coefficient b2.

Math   Statistics-And-Probability   
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