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deviation of 15 minutes. The appearance prep (wash, polish, etc.) costs $6 per ha an average of 60 minutes, with a standard deviation of 5 minutes. What are the mean and standard deviation of the total time spent preparing a can that we cannot find the standard deviation if we do not believe that the two phas are independent, an important assumption to check.) b). What are the mean and standard deviation of the total expense to prepare a c). What are the mean and standard deviation of the difference in costs for the the operation? d). What is the probability that it will take longer to do the appearance prep mechanical checkup? (Note that we cannot answer this question unless we be phase of the process can be described by a Normal model.) the a) 15-

deviation of 15 minutes. The appearance prep (wash, polish, etc.) costs $6 per ha an average of 60 minutes, with a standard deviation of 5 minutes. What are the mean and standard deviation of the total time spent preparing a can that we cannot find the standard deviation if we do not believe that the two phas are independent, an important assumption to check.) b). What are the mean and standard deviation of the total expense to prepare a c). What are the mean and standard deviation of the difference in costs for the the operation? d). What is the probability that it will take longer to do the appearance prep mechanical checkup? (Note that we cannot answer this question unless we be phase of the process can be described by a Normal model.) the a) 15-

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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1.Suppose a used car dealer runs autos through a two-stage process to get them ready to sell. The mechanical checkup costs $50 per hour and takes an average of 90 minutes, with a standard deviation of 15 minutes. The appearance prep (wash, polish, etc.) costs $6 per hour and takes an average of 60 minutes, with a standard deviation of 5 minutes. What are the mean and standard deviation of the total time spent preparing a car? (Note that we cannot find the standard deviation if we do not believe that the two phases of the process are independent, an important assumption to check.) b). What are the mean and standard deviation of the total expense to prepare a car? c). What are the mean and standard deviation of the difference in costs for the two phases of the operation? d). What is the probability that it will take longer to do the appearance prep than the mechanical checkup? (Note that we cannot answer this question unless we believe each phase of the process can be described by a Normal model.) a) EX= 10-
Transcribed Image Text:1.Suppose a used car dealer runs autos through a two-stage process to get them ready to sell. The mechanical checkup costs $50 per hour and takes an average of 90 minutes, with a standard deviation of 15 minutes. The appearance prep (wash, polish, etc.) costs $6 per hour and takes an average of 60 minutes, with a standard deviation of 5 minutes. What are the mean and standard deviation of the total time spent preparing a car? (Note that we cannot find the standard deviation if we do not believe that the two phases of the process are independent, an important assumption to check.) b). What are the mean and standard deviation of the total expense to prepare a car? c). What are the mean and standard deviation of the difference in costs for the two phases of the operation? d). What is the probability that it will take longer to do the appearance prep than the mechanical checkup? (Note that we cannot answer this question unless we believe each phase of the process can be described by a Normal model.) a) EX= 10-
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