Suppose a batch of metal shafts produced in a manufacturing company have a variance of 99 and a mean diameter of 207207 inches. If 7272 shafts are sampled at random from the batch, what is the probability that the mean diameter of the sample shafts would be less than 206.7206.7 inches? Round your answer to four decimal places.
Suppose a batch of metal shafts produced in a manufacturing company have a variance of 99 and a mean diameter of 207207 inches. If 7272 shafts are sampled at random from the batch, what is the probability that the mean diameter of the sample shafts would be less than 206.7206.7 inches? Round your answer to four decimal places.
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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Question
Suppose a batch of metal shafts produced in a manufacturing company have a variance of 99 and a
If 7272 shafts are sampled at random from the batch, what is the probability that the mean diameter of the sample shafts would be less than 206.7206.7 inches? Round your answer to four decimal places.
Expert Solution
Step 1: Given that
Sample size n=72
Population mean=207
Population variance=9
Population standard deviation=√variance
=√9
=3
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Solved in 3 steps
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