Question

A salsa manufacturer analyzed two styles of packaging on its top selling flavor of salsa. The researchers would like to test the claim that the new packaging performs better according to consumer preference. Let x be a rating given by a consumer. The Sample data can be summarized as 50, W1= 7.5, 81 0.86 for the old packaging, and n2 = 58, T2 = 8.1, 82 = 1.2 for the new packaging. Find the test statistic. ni = 0 -2.94 0 -15.84 0 -3.01 O 3.01 0 -2.34

Answer 1

ni - 5o N = 58 lå = 7.5 8.1 Si = 0.86 52 - 1.2 The test statistic t X,- X2 silno +52102 7.5 - 8.1 = = -3.014 0.862 1.2 + 50 58 El 3.01 Ans. it = -3-01