1. A automobile lubrication shop keeps track of the length of time it takes to change the oil in a customer's car.From the past records they have found that the length of an oil change is normally distributed with a mean μ= 35 minutes and a standard deviation σ = 6 minutes. What is the probability that the average length of timefor nine oil changes will be 40 minutes or longer?

Mean()=35standard deviation()=6sample size(n)=9

Answered: A automobile lubrication shop keeps…

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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