The mean life of a certain metal saw blade is 31 hours, with a standard deviation of 4.30 hours. Assuming that the distribution is normal, What is the probability that a simple random sample of 30 metal saw blades has a mean of less than 32 hours? 1.) SD of the sample mean (input 4 decimal places)= 2.) z-score (input 2 decimal places) = 3.) Final answer/ Probability (input 2 decimal places) =
The mean life of a certain metal saw blade is 31 hours, with a standard deviation of 4.30 hours. Assuming that the distribution is normal, What is the probability that a simple random sample of 30 metal saw blades has a mean of less than 32 hours? 1.) SD of the sample mean (input 4 decimal places)= 2.) z-score (input 2 decimal places) = 3.) Final answer/ Probability (input 2 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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The mean life of a certain metal saw blade is 31 hours, with a standard deviation of 4.30 hours. Assuming that the distribution is normal,
What is the probability that a simple random sample of 30 metal saw blades has a mean of less than 32 hours?
1.) SD of the sample mean (input 4 decimal places)=
2.) z-score (input 2 decimal places) =
3.) Final answer/ Probability (input 2 decimal places) =
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