1. An automobile manufacturer timed a random sample of 10 mechanics in the performance of a particular maintenance task. If it took them on average 24.05 minutes with a standard deviation of 2.68 minutes, construct and interpret a 95%-confidence interval for the population variance arrived at using the x² (n-1)s² distribution of the quantity (the customary method.)

1. An automobile manufacturer timed a random sample of 10 mechanics in the performance of a particular maintenance task. If it took them on average 24.05 minutes with a standard deviation of 2.68 minutes, construct and interpret a 95%-confidence interval for the population variance arrived at using the x² (n-1)s² distribution of the quantity (the customary method.)

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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