A leading magazine (like Barron's) reported at one time that the average number of weeks an individual is unemployed is 28 weeks. Assume that for the population of all unemployed individuals the population mean length of unemployment is 28 weeks and that the population standard deviation is 3.8 weeks. Suppose you would like to select a random sample of 60 unemployed individuals for a follow-up study. Find the probability that a single randomly selected value is greater than 27.2. P(X> 27.2) = (Enter your answers as numbers accurate to 4 decimal places.) Find the probability that a sample of size n = 60 is randomly selected with a mean greater than 27.2. P(M> 27.2) = (Enter your answers as numbers accurate to 4 decimal places.)
A leading magazine (like Barron's) reported at one time that the average number of weeks an individual is unemployed is 28 weeks. Assume that for the population of all unemployed individuals the population mean length of unemployment is 28 weeks and that the population standard deviation is 3.8 weeks. Suppose you would like to select a random sample of 60 unemployed individuals for a follow-up study. Find the probability that a single randomly selected value is greater than 27.2. P(X> 27.2) = (Enter your answers as numbers accurate to 4 decimal places.) Find the probability that a sample of size n = 60 is randomly selected with a mean greater than 27.2. P(M> 27.2) = (Enter your answers as numbers accurate to 4 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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Step 1
The question is about sampling distribution
Given :
Popl. mean length of unemployment ( ) = 28 weeks
Popl. std. deviation of length of unemployment ( ) = 3.8 weeks
Randomly selected no. of unemployed individuals ( n ) = 60
To find :
1 ) Prob. that a randomly selected value is greater than 27.2
2 ) Prob. that sample mean is greater than 27.2
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