Question

A college dean is interested in the performance of students in a English course. After the final grade, students are randomly selected from three different sections of the English course. What can be conclude with an α of 0.01? The data are below.

section 1	section 2	section 3
84 68 74 65 90 75 64 77 40 78 69	90 82 82 77 75 82 81 91 70 90 82	94 81 87 82 72 77 81 87 67 86 77

b) Obtain/compute the appropriate values to make a decision about H₀.
critical value = ___________ ; test statistic = ___________
Decision:  Reject H0 or Fail to reject H0

c) Compute the corresponding effect size(s) and indicate magnitude(s).
η² =___________   ;  ---Select--- na trivial effect small effect medium effect large effect

e) Regardless of the H₀ decision, conduct Tukey's post hoc test for the following comparisons:
1 vs. 3: difference = _____________; significant:  ---Select--- Yes No
1 vs. 2: difference = _____________ ; significant:  ---Select--- Yes No

f) Regardless of the H₀ decision, conduct Scheffe's post hoc test for the following comparisons:
2 vs. 3: test statistic =  ; significant:
1 vs. 2: test statistic =  ; significant:  

Answer 1