Homework 2 Ec 320 Professor Mastromonaco Fall 2015 Due Week Of October 12th 2015
Suppose that a random sample of 200 twenty-year-old men is selected from a population and these men’s height (in inches), Hi , and weight (in pounds), Wi , are recorded. OLS estimation of a simple linear regression model relating weight to height yields the fitted regression model:
Wi = 25 + 1.75Hi
a) What is the regression’s weight prediction for someone who is 60inches tall?
b) A man has alate growth spurt and grows 2inches over the course of a year. What is the regression’s prediction for the increase in this man’s weight?
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