A researcher finds that 15 out of 45 customers of store 1 feel they get good service where 20 out of 40 customers in store 2 feel they get good service. The sample proportions are Multiple choice question. p1 = .33 for store 1 and p2 = .50 for store 2 p1 = .50 for store 1 and p2 = .33 for store 2 p1 = .15 for store 1 and p2 = .20 for store 2