Set 1: Age Group and Cereal Brand The following data compare two age group's preference between Cereal Brand A and Brand B. Let's examine the difference between the proportion of people that prefer Brand A between the two age groups. Contingency Table Cereal Brand A Brand B Age Group 18-22 year olds 19 27 23-27 year olds 12 33 Total 18-22 year olds: 46 Total 23-27 year olds: 45 Flag question: Question 1 Question 15 pts Question Set 1_A: Check Assumptions for a confidence interval for two proportions and provide reasoning