a) Find the mean and standard deviation of clearances between shafts and bearings selected from these lots. b) If a shaft and bearings are selected at random, find the probability that the shaft will not fit inside the bearings. Assume that both dimensions are normally distributed.

a) Find the mean and standard deviation of clearances between shafts and bearings selected from these lots. b) If a shaft and bearings are selected at random, find the probability that the shaft will not fit inside the bearings. Assume that both dimensions are normally distributed.

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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Concept explainers

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.

Question

Q3: Suppose that the diameter of meter shafts in a lot have a mean of 0.249 inches and
standard deviation of 0.03 inches. The inner diameter of bearings in another lot have a
mean of 0.255 inches and standard deviation of 0.002 inches.
a) Find the mean and standard deviation of clearances between shafts and bearings
selected from these lots.
b) If a shaft and bearings are selected at random, find the probability that the shaft will
not fit inside the bearings. Assume that both dimensions are normally distributed.

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