Suppose that a researcher is interested in the effect of new smart drug on IQ. Scores from
Question:
Suppose that a researcher is interested in the effect of new smart drug on IQ. Scores from the IQ test are normally distributed with a mean of μ = 100 and σ = 15.
A participant receives the smart drug and completes the IQ assessment.
a. If the treatment has no effect on IQ, what is the probability that X > 145?
b. If the treatment has no effect on IQ, what is the probability that X > 110?
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a X 145 correspon...View the full answer
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Related Book For
Essentials Of Statistics For The Behavioral Sciences
ISBN: 9780357365298
10th Edition
Authors: Frederick J Gravetter, Larry B. Wallnau, Lori Ann B. Forzano, James E. Witnauer
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