In Issue 338 of the Amstat News, thenpresident of the American Statistical Association Fritz Scheuren reported the results of a survey on how members would prefer to receive ballots in annual elections.
a. Following are the results of the survey, cross-classified by gender. At the 5% significance level, do the data provide sufficient evidence to conclude that gender and preference are associated?

b. Following are the results of the survey, cross-classified by age. At the 5% significance level, do the data provide sufficient evidence to conclude that age and preference are associated?

c. Following are the results of the survey, cross-classified by degree. At the 5% significance level, do the data provide sufficient evidence to conclude that degree and preference are associated?

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Gender Male Female Total Mail 58 E 151 86 237 Both 720 N/A 76 50 126 Tota 357 2 202 559 Age (yr) Mail Email Both NNA 95 38 42 Total 197 Under 40 40 or over Total 78 230 110 122 540 56 135 72 80 343 Degree PhD MA Other Total 86 Email 166 7 2 239 Both 84 23 5 112 129 Total 388 16711 566 Mai6 3 N/A 73 55