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Question: Refer to Exercise in which a regression equation is given that relates average weight and height for men in the 18- to 29-year-old age group.

a. Suppose a man in this age group is 72 inches tall. Use the regression equation given in the previous exercise to predict the weight of this man.

b. Suppose this man, who is 72 inches tall, weighs 190 pounds. Calculate the residual (prediction error) for this individual.

Exercise: Suppose that a regression equation for the relationship between y = weight (pounds) and x = height (inches) for men aged 18 to 29 years old is

Average weight = -250 + 6(Height)

a. Estimate the average weight for men in this age group who are 70 inches tall.

b. What is the slope of the regression line for average weight and height? Write a sentence that interprets this slope in terms of how much average weight changes when height is increased by 1 inch.

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