Statistics for Engineers and Scientists
4th Edition
ISBN: 9780073401331
Author: William Navidi Prof.
Publisher: McGraw-Hill Education
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Textbook Question
Chapter 7.2, Problem 5E
In Galton’s height data (Figure 7.1, in Section 7.1), the least-squares line for predicting forearm length (y) from height (x) is y = –0.2967 + 0.2738x.
- a. Predict the forearm length of a man whose height is 70 in.
- b. How tall must a man be so that we would predict his forearm length to be 19 in.?
- c. All the men in a certain group have heights greater than the height computed in part (b). Can you conclude that all their forearms will be at least 19 in. long? Explain.
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Statistics for Engineers and Scientists
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