Question

Students in a business statistics course performed a completely randomized design to test the strength of four brands of trash bags. One-pound weights were placed into a bag, one at a time, until the bag broke. A total of 24 bags, 6 for each brand, were used. The data in the accompanying table give the weight (in pounds) required to break the trash bags. Brand 1 Brand 2 Brand 3 Brand 4 32 40 33 22 38 36 33 16 36 38 35 17 32 41 34 20 38 30 33 20 34 36 35 20 At the 0.05 level of significance, is there evidence of a difference in the mean strength of the four brands of trash bags? Determine the hypotheses. Choose the correct answer below. Question 13 options: 1) None of the other answers (except for “All of the other answers") 2) All of the other answers 3) H0: µ1 = µ2 = µ3 = µ4 H1: µ1 ≠ µ2 ≠ µ3 ≠ µ4 4) H0: µ1 = µ2 = µ3 = µ4 = µ5 = µ6 H1: Not all µj are equal (where j = 1, 2, 3, 4, 5, 6) 5) H0: µ1 = µ2 = µ3 = µ4 H1: Not all µj are equal (where j = 1, 2, 3, 4) 6) H0: µ1 = µ2 = µ3 = µ4 = µ5 = µ6 H1: µ1 ≠ µ2 ≠ µ3 ≠ µ4 ≠ µ5 ≠ µ6

Answer 1

Ans : 5) H0: µ1 = µ2 = µ3 = µ4 H1: Not all µj are equal (where j = 1, 2, 3, 4)