A study of the amount of time it takes a mechanic to rebuild the transmission for a 2010 ChevroletColorado shows that the mean is 8.4 hours and the standard deviation is 1.8 hours. If 40 mechanicsare randomly selected, find the probability that their mean rebuild time is less than 8.9 hours.
A study of the amount of time it takes a mechanic to rebuild the transmission for a 2010 ChevroletColorado shows that the mean is 8.4 hours and the standard deviation is 1.8 hours. If 40 mechanicsare randomly selected, find the probability that their mean rebuild time is less than 8.9 hours.
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 14PPS
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A study of the amount of time it takes a mechanic to rebuild the transmission for a 2010 Chevrolet
Colorado shows that the mean is 8.4 hours and the standard deviation is 1.8 hours. If 40 mechanics
are randomly selected, find the probability that their mean rebuild time is less than 8.9 hours.
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