William used a sample of 68 U.S - 9381

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William used a sample of 68 U.S. cities to estimate the relationship between Crime (annual property crimes per 100,000 persons) and Income (median income per capita). His estimated regression equation was Crime = 428 + .050 Income. 

Assuming b1 is significant, if Income decreases by 1000 we would predict that Crime will __________.

A.   increase by 428

B.   decrease by 50

C.   increase by 500

D.   increase by 50 

Solution Description

William used a sample of 68 U.S. cities to estimate the relationship between Crime (annual property crimes per 100,000 persons) and Income (median income per capita). His estimated regression equation was Crime = 428 + .050 Income.