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 2E
In a study of the relationship between the Brinell hardness (x) and tensile strength in ksi (y) of specimens of cold drawn copper, the least-squares line was y = –196.32 + 2.42x.
- a. Predict the tensile strength of a specimen whose Brinell hardness is 102.7.
- b. If two specimens differ in their Brinell hardness by 3, by how much do you predict their tensile strengths to differ?
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Statistics for Engineers and Scientists
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