Question
A medical researcher is studying a new drug which she believes will decrease outbreaks in people who suffer from acne. She obtains two samples of
A medical researcher is studying a new drug which she believes will decrease outbreaks in people who suffer from acne. She obtains two samples of acne sufferers. Group one, consisting of 8 individuals, applies a daily facial cream which contains the active ingredient. Group two, consisting of 6 individuals, applies the same facial cream except that it does not contain the active ingredient.
a.Write the symbolic notation for the null and alternative hypotheses.
b.If tobt = -2.84 and a = .01, was there a significant effect? How do you know?
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How To Prove It A Structured Approach
Authors: Daniel J Velleman
2nd Edition
0511159439, 9780511159435
