MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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A survey collected data on attitudes toward the quality of customer service in retail stores.  The survey found that 270 of the 750 American adults sampled felt that customer service is better today than it was two years ago.

We wish to develop a 94% confidence interval for the proportion of American adults who feel customer service is better today than it was two years ago.

 

What is the population?

A) the 750 American adults sampled
B) customer service representatives
C) all American adults
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We have to decide the population to develop 94% confidence interval for the proportion of American adults who feel customer service is better today than it was two years ago.

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