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1. be less than 30? 2. be greater than 2 below the population mean? 3. be less than 5 above the population mean? 4. be within 0.5 of the population mean?

1. be less than 30? 2. be greater than 2 below the population mean? 3. be less than 5 above the population mean? 4. be within 0.5 of the population mean?

MATLAB: An Introduction with Applications
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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6. Suppose that a random sample of size 64 is to be selected from a population with mean 30 and standard deviation 7. What is the approximate probability that the sample mean will... 1. be less than 30? 2. be greater than 2 below the population mean? 3. be less than 5 above the population mean? 4. be within 0.5 of the population mean? 5. will differ from the population mean by more than 0.6? 6. be either less than 3 below or greater than 4 above the population mean? 7. What is the approximate value of the sample mean if 60% of all random samples of size 64 is less than the sample mean? 8. What is the approximate value of the sample mean if 60% of all random samples of size 64 is greater than the sample mean? 9. What is the approximate value of the sample mean if 25% of all random samples of size 64 is greater than the sample mean? 10. What is the approximate value of the sample mean if 25% of all random samples of size 64 is less than the sample mean?
Transcribed Image Text:6. Suppose that a random sample of size 64 is to be selected from a population with mean 30 and standard deviation 7. What is the approximate probability that the sample mean will... 1. be less than 30? 2. be greater than 2 below the population mean? 3. be less than 5 above the population mean? 4. be within 0.5 of the population mean? 5. will differ from the population mean by more than 0.6? 6. be either less than 3 below or greater than 4 above the population mean? 7. What is the approximate value of the sample mean if 60% of all random samples of size 64 is less than the sample mean? 8. What is the approximate value of the sample mean if 60% of all random samples of size 64 is greater than the sample mean? 9. What is the approximate value of the sample mean if 25% of all random samples of size 64 is greater than the sample mean? 10. What is the approximate value of the sample mean if 25% of all random samples of size 64 is less than the sample mean?
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