10.72 The authors of the article “Perceived Risks of Heart Disease and Cancer Among Cigarette Smokers”

(Journal of the American Medical Association [1999]:

1019–1021) expressed the concern that a majority of smokers do not view themselves as being at increased risk of heart disease or cancer. A study of 737 current smokers selected at random from U.S.

households with telephones found that of the 737 smokers surveyed, 295 indicated that they believed they have a higher than average risk of cancer.

Do these data suggest that p, the proportion of all smokers who view themselves as being at increased risk of cancer is in fact less than .5, as claimed by the authors of the paper? Test the relevant hypotheses using a 5 .05.