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Bots, call-in customer service phone line received a total of 56% positive reviews from customers when the customers were asked to rate their call-in experience. The CEO conducts a test of significance as follows:

Bots, call-in customer service phone line received a total of 56% positive reviews from customers when the customers were asked to rate their call-in experience. The CEO conducts a test of significance as follows:

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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Last year at Berries Bots, the call-in customer service phone line received a total of 56% positive reviews from customers when the customers were asked to rate their call-in experience. The CEO conducts a test of significance as follows: Ho:n = 0.56 Ha:n < 0.56 The CEO obtains a random sample 517 customers who called into the phone line this year with 277 customers who had a positive review. (a) Write out the null and alternative hypotheses in contextual words. (b) Explain whether it would be appropriate to use a theoretical approach to conduct a statistical analysis, and explain how you know.
Transcribed Image Text:Last year at Berries Bots, the call-in customer service phone line received a total of 56% positive reviews from customers when the customers were asked to rate their call-in experience. The CEO conducts a test of significance as follows: Ho:n = 0.56 Ha:n < 0.56 The CEO obtains a random sample 517 customers who called into the phone line this year with 277 customers who had a positive review. (a) Write out the null and alternative hypotheses in contextual words. (b) Explain whether it would be appropriate to use a theoretical approach to conduct a statistical analysis, and explain how you know.
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