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A marketing firm claims that the chance a grocery store shopper notices a sale item on the top shelf is 26 percent. To prove at a 5 percent significance level that the actual chance differs (i.e. is either higher or lower than the claim), in a sample of 220 shoppers the percent noticing the sale item would have to differ from 26 percent by at least percentage points. (Record your answer accurate to at least the nearest first decimal place.)

A marketing firm claims that the chance a grocery store shopper notices a sale item on the top shelf is 26 percent. To prove at a 5 percent significance level that the actual chance differs (i.e. is either higher or lower than the claim), in a sample of 220 shoppers the percent noticing the sale item would have to differ from 26 percent by at least percentage points. (Record your answer accurate to at least the nearest first decimal place.)

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.6: Summarizing Categorical Data
Problem 4AGP
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A marketing firm claims that the chance a grocery store shopper notices a sale item on the top shelf is 26 percent. To prove at a 5 percent significance level that the actual chance differs (i.e. is either higher or lower than the claim), in a sample of 220 shoppers the percent noticing the sale item would have to differ from 26 percent by at least percentage points. (Record your answer accurate to at least the nearest first decimal place.)
Transcribed Image Text:A marketing firm claims that the chance a grocery store shopper notices a sale item on the top shelf is 26 percent. To prove at a 5 percent significance level that the actual chance differs (i.e. is either higher or lower than the claim), in a sample of 220 shoppers the percent noticing the sale item would have to differ from 26 percent by at least percentage points. (Record your answer accurate to at least the nearest first decimal place.)
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