In what ways do advertisers in magazines use sexual imagery toappeal to youth? One study classified each of 1509 full-page orlarger ads as "not sexual" or "sexual," according to the amount andstyle of the dress of the male or female model in the ad. The adswere also classified according to the target readership of themagazine. Here is the two-way table of counts.

	Magazine readership
Model dress	Women	Men	General interest	Total
Not sexual	344	510	245	1099
Sexual	219	89	102	410
Total	563	599	347	1509

(a) Summarize the data numerically and graphically. (Compute theconditional distribution of model dress for each audience. Roundyour answers to three decimal places.)

	Women	Men	General
Notsexual
Sexual

(b) Perform the significance test that compares the model dress forthe three categories of magazine readership. Summarize the resultsof your test and give your conclusion. (Use ? = 0.01.Round your value for ?² to two decimal places,and round your P-value to four decimal places.)

?2 =
P-value =

Conclusion

Fail to reject the null hypothesis. There is significantevidence of an association between target audience and modeldress.Reject the null hypothesis. There is significant evidence ofan association between target audience and modeldress.    Fail to reject the null hypothesis.There is not significant evidence of an association between targetaudience and model dress.Reject the null hypothesis. There is notsignificant evidence of an association between target audience andmodel dress.

(c) All of the ads were taken from the March, July, and Novemberissues of six magazines in one year. Discuss this fact from theviewpoint of the validity of the significance test and theinterpretation of the results.

This is not an SRS. This gives us no reason to believe ourconclusions are suspect.This is an SRS. This gives us reason tobelieve our conclusions might besuspect.    This is not an SRS. This gives usreason to believe our conclusions might be suspect.This is an SRS.This gives us no reason to believe our conclusions are suspect.