ast data indicate that the amount of money contributed by working residents of a large city to a volunteer rescue squad is a normal random variable with a standard deviation of Php 65.00. It has been suggested that the contributions to the rescue squad from just the employees of the sanitation department are much more variable. If the contributions of a random sample of 12 employees from the sanitation department had a standard deviation of Php 85.00, can we conclude at the 0.05 level of significance that the standard deviation of the contributions of all sanitation workers is greater than that of all workers living in the city?
ast data indicate that the amount of money contributed by working residents of a large city to a volunteer rescue squad is a normal random variable with a standard deviation of Php 65.00. It has been suggested that the contributions to the rescue squad from just the employees of the sanitation department are much more variable. If the contributions of a random sample of 12 employees from the sanitation department had a standard deviation of Php 85.00, can we conclude at the 0.05 level of significance that the standard deviation of the contributions of all sanitation workers is greater than that of all workers living in the city?
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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Past data indicate that the amount of money contributed by working residents of a large city
to a volunteer rescue squad is a normal random variable with a standard deviation of Php
65.00. It has been suggested that the contributions to the rescue squad from just the
employees of the sanitation department are much more variable. If the contributions of a
random sample of 12 employees from the sanitation department had a standard deviation of
Php 85.00, can we conclude at the 0.05 level of significance that the standard deviation of the
contributions of all sanitation workers is greater than that of all workers living in the city?
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