Run the appropriate test and draw appropriate conclusions

Reference no: EM131010785

1. Why is rejection of the null hypothesis using a t test a more specific statement than rejection of the null hypothesis using the appropriate distribution-free test?

2. Three rival professors teaching English 1 all claim the honor of having the best students. To settle the issue, eight students are randomly drawn from each class and given the same exam. The exams are graded by a neutral professor who does not know from which class the students came. The data are shown.

Professor Li	Professor Kessler	Professor Bright
82	55	65
71	88	54
56	85	66
58	83	68
63	71	72
64	70	78
62	68	65
53	72	73

Run the appropriate test and draw the appropriate conclusions.

Reference no: EM131010785

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