33. Measuring the height of a tree is usually more difficult than measuring the diameter of...
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33. Measuring the height of a tree is usually more difficult than measuring the diameter of the tree. Therefore, many researchers use regression models to predict the height of a tree from its diameter measured at 4 feet 6 inches from the ground. The following computer output shows the results of a linear regression based on the heights, in feet, and the diameters, in inches, recorded from 31 felled trees. Intercept Diameter Estimate 62.031 1.054 (D) (0.732,1.376) (E) (53.07,70.99) Std Error 4.383 0.322 t value 14.15 3.27 Pr>) 0.0000 0.0028 Which of the following is a 95 percent confidence interval for the slope of the population regression line? (A) (0.001, 2.107) (B) (0.396, 1.712) (C) (0.423,1.685) 33. Measuring the height of a tree is usually more difficult than measuring the diameter of the tree. Therefore, many researchers use regression models to predict the height of a tree from its diameter measured at 4 feet 6 inches from the ground. The following computer output shows the results of a linear regression based on the heights, in feet, and the diameters, in inches, recorded from 31 felled trees. Intercept Diameter Estimate 62.031 1.054 (D) (0.732,1.376) (E) (53.07,70.99) Std Error 4.383 0.322 t value 14.15 3.27 Pr>) 0.0000 0.0028 Which of the following is a 95 percent confidence interval for the slope of the population regression line? (A) (0.001, 2.107) (B) (0.396, 1.712) (C) (0.423,1.685)
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Business Statistics A First Course
ISBN: 9780321979018
7th Edition
Authors: David M. Levine, Kathryn A. Szabat, David F. Stephan
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