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a. What is the probability that the sample mean will be within +/- 5 of the population mean (to 4 decimals)? .6826 b. What is the probability that the sample mean will be within +/- 10 of the population mean (to 4 decimals)? .9544

a. What is the probability that the sample mean will be within +/- 5 of the population mean (to 4 decimals)? .6826 b. What is the probability that the sample mean will be within +/- 10 of the population mean (to 4 decimals)? .9544

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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A population has a mean of 200 and a standard deviation of 50. Suppose a sample of size 100 is selected and x is used to estimate u. Use z-table. a. What is the probability that the sample mean will be within +/- 5 of the population mean (to 4 decimals)? .6826 b. What is the probability that the sample mean will be within +/- 10 of the population mean (to 4 decimals)? .9544
Transcribed Image Text:A population has a mean of 200 and a standard deviation of 50. Suppose a sample of size 100 is selected and x is used to estimate u. Use z-table. a. What is the probability that the sample mean will be within +/- 5 of the population mean (to 4 decimals)? .6826 b. What is the probability that the sample mean will be within +/- 10 of the population mean (to 4 decimals)? .9544
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