In 2013, Ace Metrix gathered a random sample of 1200 television ads and found that 180 (or 15%) featured a celebrity. They created a confidence interval to estimate the proportion of all ads that feature a celebrity to within 2.7%. Based on this interval, which of the following must be true? (A) Approximately 2.7% of all television ads were sampled. (B) With 97.3% confidence, 15% of all television ads feature a celebrity. (C) It is plausible that 19% of all television ads feature a celebrity. (D) It is plausible that 13% of all television ads feature a celebrity. (E) Between 12.3% and 17.7% of all celebrities have been featured in television ads.
In 2013, Ace Metrix gathered a random sample of 1200 television ads and found that 180 (or 15%) featured a celebrity. They created a confidence interval to estimate the proportion of all ads that feature a celebrity to within 2.7%. Based on this interval, which of the following must be true? (A) Approximately 2.7% of all television ads were sampled. (B) With 97.3% confidence, 15% of all television ads feature a celebrity. (C) It is plausible that 19% of all television ads feature a celebrity. (D) It is plausible that 13% of all television ads feature a celebrity. (E) Between 12.3% and 17.7% of all celebrities have been featured in television ads.
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:In 2013, Ace Metrix gathered a random sample of 1200 television ads and found that 180 (or 15%)
featured a celebrity. They created a confidence interval to estimate the proportion of all ads that
feature a celebrity to within 2.7%. Based on this interval, which of the following must be true?
(A) Approximately 2.7% of all television ads were sampled.
(B) With 97.3% confidence, 15% of all television ads feature a celebrity.
(C) It is plausible that 19% of all television ads feature a celebrity.
(D) It is plausible that 13% of all television ads feature a celebrity.
(E) Between 12.3% and 17.7% of all celebrities have been featured in television ads.
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