The data in the table give the square footages and sales prices of n = 12 houses
Question:
Plot of data for Exercise 12.42
MINITAB output for Exercise 12.42
Regression Analysis: y versus x
The regression equation is
y = 251206 + 27.4 x
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a. Can you see any pattern other than a linear relationship in the original plot?
b. The value of r 2 for these data is .957. What does this tell you about the fit of the regression line?
c. Look at the accompanying diagnostic plots for these data. Do you see any pattern in the residuals? Does this suggest that the relationship between price and square feet is something other than linear?
Diagnostic plots for Exercise 12.42
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Related Book For
Introduction To Probability And Statistics
ISBN: 9781133103752
14th Edition
Authors: William Mendenhall, Robert Beaver, Barbara Beaver
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