1) Advertisers need to know which age groups are likely to see their ads. A market research study was conducted on people who purchased Cosmopolitan magazine. Each person who participated in the study filled out a questionnaire. One questions asked them to select an age group (18-24m 25-34, 35-44, 45-54, 55-64 and 65+).

a) What is the appropriate null and alternate hypothesis to determine if purchasing Cosmopolitan magazine depends on age group?

b) Choose a level of aplha Use = 0.01 for this problem.

c) To test the hypothesis, the market research study randomly selected 120 people who purchased Cosmopolitan magazine. The data appear in the Cosmo worksheet of the Chp 12 Review Problems data workbook on Moodle. Use Excel to construct a one-way pivot table showing the number of study participants in each of the 6 age categories

d) Sketch the sampling distribution. Include the critical value and test statistic e) Draw a conclusion and report that in the problem context. f) Calculate the p-value for the hypothesis test