Question

In what ways do advertisers in magazines use sexual imagery to appeal to youth? One study classified each of 1500 full-page or larger ads as "not sexual" or "sexual, according to the amount and style of the dress of the male or female model in the ad. The ads were also classified according to the age group of the intended readership. Here is a summary of the data. Magazine readership age group Model dress Young adult Mature adult Not sexual (percent) Sexual (percent) 72.6% 76.0% 27.4% 24.0% Number of ads 1000 500 Perform the significance test that compares the model dress for the age groups of magazine readership. Summarize the results of your test. (Use α = 0.05. Round your round your P-value to four decimal places.) to three decimal places and χ2_-0315 p-value = Give your conclusion Reject the null hypothesis. There is significant evidence of an association between model dress and age group Fail to reject the null hypothesis. There is significant evidence of an association between model dress and age group. Fail to reject the null hypothesis. There is not significant evidence of an association between model dress and age group Reject the null hypothesis. There is not significant evidence of an association between model dress and age group. eBook

please explain how you got the answer using excel

Answer 1

Answer. - Date: 08/04/2019 Hypotheses are: HO: sexual ads are not more common in magazines intended for young. Ha: sexual ads are more common in magazines intended for young Following table shows the observed frequencies; Model dress Noe sexual Sexual Total Magazine readership age group Total Young adult 1000*.726-726500*0.760-380 | 1106 1000*0.274-274 500*0.24 120 394 1000 mature adult 500 1500 Expected frequencies will be calculated as follows: ith row total - jth row total grand total Following table shows the expected frequencies: ㄅ

Model dress Noe sexual Sexual Total Magazine readership age group (E) Young adult 737.33 262.67 1000 mature adult 368.67 131.33 500 Total 1106 394 1500 Following table shows the calcualtions for chi sqaure test statistics: 726 274 380 120 Total 737.33 262.67 368.67 131.33 (O-E)*2/E 0.174099657 0.488707884 0.348194591 0.977452981 1988455114 So (o - E)2 1.988

Degree of freedm: dfnumber of rows -1) (number of columns-1) (2-1)*(2-1)-1 P-value of the test 0.1586 Since p-value is greater than 0.05 so we fail to reject the null hypothesis. That is we cannot conclude that there sexual ads are more common in magazines intended for young