Homework Help is Here – Start Your Trial Now!
Math
Statistics
A leading magazine (like Barron's) reported at one time that the average number of weeks an individual unemployed is 30 weeks. Assume that the length of unemployment is normally distributed with populatio mean of 30 weeks and the population standard deviation of 7 weeks. Suppose you would like to select a random sample of 36 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( 30 b. What is the distribution of ? N 30 c. What is the probability that one randomly selected individual found the next job is less than 31 weeks? 7 d. For 36 unemployed individuals, find the probability that the average time that they found the next job is less than 31 weeks. e. For part d), is the assumption of normal necessary? Yes No

A leading magazine (like Barron's) reported at one time that the average number of weeks an individual unemployed is 30 weeks. Assume that the length of unemployment is normally distributed with populatio mean of 30 weeks and the population standard deviation of 7 weeks. Suppose you would like to select a random sample of 36 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( 30 b. What is the distribution of ? N 30 c. What is the probability that one randomly selected individual found the next job is less than 31 weeks? 7 d. For 36 unemployed individuals, find the probability that the average time that they found the next job is less than 31 weeks. e. For part d), is the assumption of normal necessary? Yes No

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
See similar textbooks
icon
Related questions
Question
A leading magazine (like Barron's) reported at one time that the average number of weeks an individual is unemployed is 30 weeks. Assume that the length of unemployment is normally distributed with population mean of 30 weeks and the population standard deviation of 7 weeks. Suppose you would like to select a random sample of 36 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( 30 b. What is the distribution of ? N( 30 c. What is the probability that one randomly selected individual found the next job is less than 31 weeks? 7 or or d. For 36 unemployed individuals, find the probability that the average time that they found the next job is less than 31 weeks. e. For part d), is the assumption of normal necessary? Yes No o
Transcribed Image Text:A leading magazine (like Barron's) reported at one time that the average number of weeks an individual is unemployed is 30 weeks. Assume that the length of unemployment is normally distributed with population mean of 30 weeks and the population standard deviation of 7 weeks. Suppose you would like to select a random sample of 36 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( 30 b. What is the distribution of ? N( 30 c. What is the probability that one randomly selected individual found the next job is less than 31 weeks? 7 or or d. For 36 unemployed individuals, find the probability that the average time that they found the next job is less than 31 weeks. e. For part d), is the assumption of normal necessary? Yes No o
Expert Solution
steps

Step by step

Solved in 2 steps

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Similar questions
Recommended textbooks for you
MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
Probability and Statistics for Engineering and th…
Probability and Statistics for Engineering and th…
Statistics
ISBN:
9781305251809
Author:
Jay L. Devore
Publisher:
Cengage Learning
Statistics for The Behavioral Sciences (MindTap C…
Statistics for The Behavioral Sciences (MindTap C…
Statistics
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
Elementary Statistics: Picturing the World (7th E…
Elementary Statistics: Picturing the World (7th E…
Statistics
ISBN:
9780134683416
Author:
Ron Larson, Betsy Farber
Publisher:
PEARSON
The Basic Practice of Statistics
The Basic Practice of Statistics
Statistics
ISBN:
9781319042578
Author:
David S. Moore, William I. Notz, Michael A. Fligner
Publisher:
W. H. Freeman
Introduction to the Practice of Statistics
Introduction to the Practice of Statistics
Statistics
ISBN:
9781319013387
Author:
David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:
W. H. Freeman
SEE MORE TEXTBOOKS