Answered: marketing research, consumer surveys…

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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In marketing research, consumer surveys may be used to determine the effectiveness of advertising. For example, in 1984, after releasing its wildly popular "Where's the Beef?" television ad, Wendy's fast-food restaurant increased its annual revenue by 31%.

A company that manufactures different kinds of candy bars plans to launch an ad during the Super Bowl that ties a classic candy bar to childhood memories and wants to analyze the public's response by surveying potential customers in January, before the ad release, and in March, 1 month after the release. Ten raters are asked in January to eat the targeted candy bar and then rate their enjoyment level on a scale of 1 to 5, where 1 means "I did not enjoy this food at all" and 5 means "I enjoyed this food very much." In March, the raters were first shown the commercial, then given the candy bar to eat, and asked to rate their responses on the same scale. The ratings are expected to improve by at least 0.2 points.

Here are the results of the 10 raters in January and March.