Answered: A major home improvement store…

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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Transcribed Image Text:A major home improvement store conducted its biggest brand recogni- tion campaign in the company's his- tory. A series of new television ad- vertisements featuring well-known entertainers and sports figures were launched. A key metric for the suc- cess of television advertisements is the proportion of viewers who "like the ads a lot". A study of 1,189 adults who viewed the ads reported that 230 indicated that they "like the ads a lot." The percentage of a typical television advertisement re- ceiving the "like the ads a lot" score is believed to be 22%. Company offi- cials wanted to know if there is evi- dence that the series of television advertisements are less successful than the typical ad (i.e. if there is evidence that the population propor- tion of "like the ads a lot" for the company's ads is less than 0.22) at a 0.01 level of significance. Test hypothesis ?

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