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A leading magazine (like Barron's) reported at one time that the average number of weeks an individual is unemployed is 25 weeks. Assume that the length of unemployment is normally distributed with population mean of 25 weeks and the population standard deviation of 2 weeks. Suppose you would like to select a random sample of 35 unemployed individuals for a follow-up study. Round the answers of following questions to 4 decimal places. a. What is the distribution of X? X - NO b. What is the distribution of ? - N( c. What is the probability that one randomly selected individual found the next job is more than 26 weeks? d. For 35 unemployed individuals, find the probability that the average time that they found the next job is more than 26 weeks. e. For part d), is the assumption of normal necessary? No Yes

A leading magazine (like Barron's) reported at one time that the average number of weeks an individual is unemployed is 25 weeks. Assume that the length of unemployment is normally distributed with population mean of 25 weeks and the population standard deviation of 2 weeks. Suppose you would like to select a random sample of 35 unemployed individuals for a follow-up study. Round the answers of following questions to 4 decimal places. a. What is the distribution of X? X - NO b. What is the distribution of ? - N( c. What is the probability that one randomly selected individual found the next job is more than 26 weeks? d. For 35 unemployed individuals, find the probability that the average time that they found the next job is more than 26 weeks. e. For part d), is the assumption of normal necessary? No Yes

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 leading magazine (like Barron's) reported at one time that the average number of weeks an individual is unemployed is 25 weeks. Assume that the length of unemployment is normally distributed with population mean of 25 weeks and the population standard deviation of 2 weeks. Suppose you would like to select a random sample of 35 unemployed individuals for a follow-up study. Round the answers of following questions to 4 decimal places. a. What is the distribution of X? X - N( b. What is the distribution of ? - N( c. What is the probability that one randomly selected individual found the next job is more than 26 weeks? d. For 35 unemployed individuals, find the probability that the average time that they found the next job is more than 26 weeks. e. For part d), is the assumption of normal necessary? No Yes
Transcribed Image Text:A leading magazine (like Barron's) reported at one time that the average number of weeks an individual is unemployed is 25 weeks. Assume that the length of unemployment is normally distributed with population mean of 25 weeks and the population standard deviation of 2 weeks. Suppose you would like to select a random sample of 35 unemployed individuals for a follow-up study. Round the answers of following questions to 4 decimal places. a. What is the distribution of X? X - N( b. What is the distribution of ? - N( c. What is the probability that one randomly selected individual found the next job is more than 26 weeks? d. For 35 unemployed individuals, find the probability that the average time that they found the next job is more than 26 weeks. e. For part d), is the assumption of normal necessary? No Yes
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