Children's recall and recognition of television advertisements was studied in the Journal of Advertising. Two groups of children were shown a 60-second commercial for Sunkist Fun Fruit Rock-n-Roll Shapes. One group (the A/V group) was shown the ad with both audio and video; the second group (the video-only group) was shown only the video portion of the commercial. Following the viewing, the children were asked to recall 10 specific items from the ad. The number of items recalled correctly by each child is summarized in the accompanying table. The researchers theorized that "children who receive an audiovisual presentation will have the same level of mean recall of ad information as those who receive only the visual aspects of the ad.". Video-Only Group5 7 6 AN Group 5 5 3 6 8 4 4 4 7 6 7 8 3 8 6 3 5 4 a. Set up the appropriate null and alternative hypotheses to test the researchers' theory. b. Find the value of the test statistic. c. Give the rejection region for a = .10. d. Make the appropriate inference. What can you say about the researchers' theory? e. Find the p-value of the test. Interpret this result.

Children's recall and recognition of television advertisements was studied in the Journal of Advertising. Two groups of children were shown a 60-second commercial for Sunkist Fun Fruit Rock-n-Roll Shapes. One group (the A/V group) was shown the ad with both audio and video; the second group (the video-only group) was shown only the video portion of the commercial. Following the viewing, the children were asked to recall 10 specific items from the ad. The number of items recalled correctly by each child is summarized in the accompanying table. The researchers theorized that "children who receive an audiovisual presentation will have the same level of mean recall of ad information as those who receive only the visual aspects of the ad.". Video-Only Group5 7 6 AN Group 5 5 3 6 8 4 4 4 7 6 7 8 3 8 6 3 5 4 a. Set up the appropriate null and alternative hypotheses to test the researchers' theory. b. Find the value of the test statistic. c. Give the rejection region for a = .10. d. Make the appropriate inference. What can you say about the researchers' theory? e. Find the p-value of the test. Interpret this result.

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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A, B, C
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