Question

For a sample of 20 New England cities, a sociologist studies the crime rate in each city (crimes per 100,000 residents) as a function of its poverty rate (in %) and its median income (in $1,000s). A portion of the regression results is shown in the accompanying table.

.:.
a. Specify the sample regression equation.
b. At the 5% significance level, show whether the poverty rate and the crime rate are linearly related.
c. Construct the 95% confidence interval for the slope coefficient of income. Using the confidence interval, determine whether income is significant in explaining the crime rate at the 5% significance level.
d. At the 5% significance level, are the poverty rate and income jointly significant in explaining the crime rate?



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  • CreatedJanuary 28, 2015
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