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of mile er con- $150. f all ng with nt col- whether s. Tell of con- averaging bably e values , or d) F e) 2 30. Riv stre a) b) c) P 31. T C

of mile er con- $150. f all ng with nt col- whether s. Tell of con- averaging bably e values , or d) F e) 2 30. Riv stre a) b) c) P 31. T C

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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I need help with question 30 with a-d
and of mile er con- $150. of all ng with nt col- whether s. Tell of con- averaging bably e values 0, or d) About what percentage of the trees should be between 5./ and 10.4 inches in diameter? e) About what percentage of the trees should be over 15 inches in diameter? 30. Rivets A company that manufactures rivets believes the shear strength (in pounds) is modeled by N(800, 50). a) Draw and label the Normal model. b) Would it be safe to use these rivets in a situation requiring a shear strength of 750 pounds? Explain. c) About what percent of these rivets would you expect to fall below 900 pounds? d) Rivets are used in a variety of applications with varying shear strength requirements. What is the maximum shear strength for which you would feel comfortable approving this company's rivets? Explain your reasoning. 31. Trees revisited The forester in Exercise 29 measured the diameters of 27 trees in a woods, and from these made projections about the whole forest based on a Normal model. The histogram Compos b) The lower cluster, that is, the s almost entirely made up of sch district. If those scores are rem shape of the new distribution? mean and standard deviation? 34. Wisconsin ACT 2015 II This plc for Wisconsin schools with the M alternative schools removed. The 1s, and mean + 1s. mean - Frequency 70 60 50 40 30 20
Transcribed Image Text:and of mile er con- $150. of all ng with nt col- whether s. Tell of con- averaging bably e values 0, or d) About what percentage of the trees should be between 5./ and 10.4 inches in diameter? e) About what percentage of the trees should be over 15 inches in diameter? 30. Rivets A company that manufactures rivets believes the shear strength (in pounds) is modeled by N(800, 50). a) Draw and label the Normal model. b) Would it be safe to use these rivets in a situation requiring a shear strength of 750 pounds? Explain. c) About what percent of these rivets would you expect to fall below 900 pounds? d) Rivets are used in a variety of applications with varying shear strength requirements. What is the maximum shear strength for which you would feel comfortable approving this company's rivets? Explain your reasoning. 31. Trees revisited The forester in Exercise 29 measured the diameters of 27 trees in a woods, and from these made projections about the whole forest based on a Normal model. The histogram Compos b) The lower cluster, that is, the s almost entirely made up of sch district. If those scores are rem shape of the new distribution? mean and standard deviation? 34. Wisconsin ACT 2015 II This plc for Wisconsin schools with the M alternative schools removed. The 1s, and mean + 1s. mean - Frequency 70 60 50 40 30 20
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