MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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Transcribed Image Text:A regression line is used to satisfactorily describe the relationship between the width of tires in inches and lifespan (in months) of 14 tires in a tire performance study. The regression analysis is shown.
Variable
Constant
Coeff SE Coefft Ratio p-Value
7.3985 0.5638 13.12
Width of tires 3.9571
3.9571 0.7382
R squared = 88.5%
O 7.3985 ± 2.624(0.5638)
O 3.9571±2.65(0.7382)
O 3.9571±2.624(0.7382)
5.36
Which expression should be used to compute a 98 percent confidence interval for the slope of the regression line?
O 7.3985 +2.681(0.5638)
O 3.9571 +2.681(0.7382)
0.034
0.005
R squared (adj) = 87.9%
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