In what ways do advertisers in magazines use sexual imagery to appeal to youth?

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.

Perform the significance test that compares the model dress for the age groups of magazine readership. Summarize the results of your test. (Use ? = 0.05. Round your ?2 to three decimal places and round your P-value to four decimal places.)

Magazine readership age group Model dress Young adult Mature adult Not sexual (percent) 72.6% 75.4% Sexual (percent) 27.4% 24.6% Number of ads 1000 500

Explanation / Answer

applying chi square goodness of fit test on above:

?2 =1.343

p value =0.2465

Observed Oi young adult mature adult Total not sexual 726 377 1103 sexual 274 123 397 Total 1000 500 1500 Expected Ei=?row*?column/?total young adult mature adult Total not sexual 735.3333 367.6667 1103 sexual 264.6667 132.3333 397 Total 1000 500 1500 chi square =(Oi-Ei)2/Ei young adult mature adult Total not sexual 0.1185 0.2369 0.355 sexual 0.3291 0.6583 0.987 Total 0.448 0.895 1.343

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