After seeing the sample means and SDs from Question II.2, Norman became concerned that a t lest might not be appropriate here, so he wants Rebecca to do a different analysis.
(a) Why is Norman concerned? That is, what is it about the data that would make someone question whether a t test would be valid?
(b) If Norman is right, then what should Rebecca do to analyze her data?
(c) Alana says that Norman shouldn't be so worried and should let Rebecca go ahead with a t test. On what grounds can Alana look at the information in Question II.2 and justify using a t test (with the original data)?
This question was answered on: Jul 11, 2017
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