A researcher wants to know how "fit" and "out of shape" students differ with respect to their grade point averages. He randomly selects 14 fit students and 14 out of shape students. Unfortunately, three out of shape students refused to be involved in the study. However, for the remaining students, he records the grade point averages (table required). Run the appropriate test of significance at the .05 level of significance. Here are the data: Fit group mean = 6.3; Out of shape group mean = 6.1; SE = 0.08; What is your statistical decision?
What will be an ideal response?
Correct Answer:
t (23) = 2.5, p < .05; Reject the null.
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