Show solution.

E. A field researcher is comparing the acceptability of four different new brands of shampoo. Eighth consumers are randomly chosen to use one of the four brands and were asked to rate its acceptability from 50 to 100 percent. The ratings given by the consumers are shown in the given table. Use the appropriate statistical procedure to determine whether the four brands differ with respect to its acceptability. An alpha criterion of .05 should be used for the test. Section A Section B Section C| Section D 30 35 78 90 78 86 90 79 90 78 93 85 80 90 90 88 90 93 85 30 80 95 76 36 86 78 93 75 78 76 88 90 81 87 78 90 93 80 80 82 Hypothesis: Ho: _ Ha: Level of Significance: a = _ df = _ Critical/Tabular Value: _ Decision Rule: Test Statistic: Computed Value: Decision: Conclusion