You Are Considering Testing a New Drug That Is Supposed

question 56

Multiple Choice

You are considering testing a new drug that is supposed to facilitate learning in mentally retarded children. Because there is relatively little known about the drug, you plan to use a nondirectional alternative hypothesis. Since your resources are limited, you can test only 20 subjects. The subjects will be run in a repeated measures design and the data will be analyzed with the sign test, using a = 0.05_{2 tail}. What is the power this time?

• A) 0.4163
• B) 0.2969
• C) 0.6161
• D) 0.2458

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Definitions:

Different Interests

The phenomenon of individuals having varied preferences, passions, and hobbies that distinguish them from others.

Age

A measure of time that specifies how long a person or entity has existed from its beginning to any given point.

Attractiveness Levels

The perceived physical appeal of an individual, which can influence social interaction and mate selection.

Average Looking

Describes an appearance considered to be in the middle of the spectrum regarding societal beauty standards; not particularly outstanding in attractiveness.