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7. Cook-It steam of 5 months, warranty peri. the steamers Answer:

7. Cook-It steam of 5 months, warranty peri. the steamers Answer:

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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7. a truck drives between 108 and 117 miles in a day. Round your answer to places. Answer: Cook-It steamer has a mean time before failure of 41 months with a standard deviation of 5 months, and the failure times are normally distributed. What should be the warranty period, in months, so that the manufacturer will not have more than 9% of the steamers returned? Round your answer down to the nearest whole number. SD=5₁ M = 41 Answer: months 9/=(x) (5) +41-
Transcribed Image Text:7. a truck drives between 108 and 117 miles in a day. Round your answer to places. Answer: Cook-It steamer has a mean time before failure of 41 months with a standard deviation of 5 months, and the failure times are normally distributed. What should be the warranty period, in months, so that the manufacturer will not have more than 9% of the steamers returned? Round your answer down to the nearest whole number. SD=5₁ M = 41 Answer: months 9/=(x) (5) +41-
Expert Solution
Step 1

given data, normal distribution, μ=41σ=5not more than 9 % of the steamers returned p(X<z)=0.09value of x =? months 

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