Suppose that a national survey finds that 73 percent of restaurant employees say that work stress has a negative impact on their personal lives. A random sample of 200 employees of a large restaurant chain finds that 141 employees say that work stress has a negative impact on their personal lives. a. Formulate the null and alternative hypotheses needed to attempt to provide evidence that the percentage of work-stressed employees for the restaurant chain differs from
Suppose that a national survey finds that 73 percent of restaurant employees say that work stress has a negative impact on their personal lives. A random sample of 200 employees of a large restaurant chain finds that 141 employees say that work stress has a negative impact on their personal lives. a. Formulate the null and alternative hypotheses needed to attempt to provide evidence that the percentage of work-stressed employees for the restaurant chain differs from
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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Ex 9. Suppose that a national survey finds that 73 percent of restaurant employees say that work
stress has a negative impact on their personal lives. A random sample of 200 employees of a large
restaurant chain finds that 141 employees say that work stress has a negative impact on their
personal lives.
a. Formulate the null and alternative hypotheses needed to attempt to provide evidence that
the percentage of work-stressed employees for the restaurant chain differs from the national
percentage.
b. Use critical values to perform the hypothesis test by setting α equal to .10, .05, .01, and .001
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