The lifetime of light produced by a company is normally distributed with standard deviation of 80 hours. The mean lifetime of a sample of 10 lights is found to be 1570 hours. Test whether the mean lifetime of the lights is 1600 hours or less
The lifetime of light produced by a company is normally distributed with standard deviation of 80 hours. The mean lifetime of a sample of 10 lights is found to be 1570 hours. Test whether the mean lifetime of the lights is 1600 hours or less
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.5: Comparing Sets Of Data
Problem 13PPS
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The lifetime of light produced by a company is
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