The following data show the yearly salaries of football coaches at some state supporteduniversities. Part Variability is critical in the manufacturing of ball bearings. Largevariances in the size of the ball bearings cause bearing failure and rapid wearout.Production standards call for a maximum variance of .0001 when the bearing sizes aremeasured in inches. A sample of 15 bearings shows a sample standard deviation of .014inches.a. Compute the 90% confidence interval estimate of the variance of the ball bearings inthe population.
The following data show the yearly salaries of football coaches at some state supporteduniversities. Part Variability is critical in the manufacturing of ball bearings. Largevariances in the size of the ball bearings cause bearing failure and rapid wearout.Production standards call for a maximum variance of .0001 when the bearing sizes aremeasured in inches. A sample of 15 bearings shows a sample standard deviation of .014inches.a. Compute the 90% confidence interval estimate of the variance of the ball bearings inthe population.
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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The following data show the yearly salaries of football coaches at some state supported
universities. Part Variability is critical in the manufacturing of ball bearings. Large
variances in the size of the ball bearings cause bearing failure and rapid wearout.
Production standards call for a maximum variance of .0001 when the bearing sizes are
measured in inches. A sample of 15 bearings shows a sample standard deviation of .014
inches.
a. Compute the 90% confidence
the population.
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