Question

In testing a proposed method of raising cognitive performance, assume results are collected as IQ test...

In testing a proposed method of raising cognitive performance, assume results are collected as IQ test scores. When deciding to accept or reject the null hypothesis, one should use:

Group of answer choices

A one-sided (left) hypothesis

A two sided or two tailed test

A no-sided (null) hypothesis

A one-sided (right) hypothesis

Math   Statistics-And-Probability   
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Homework Answers

Answer #1

In the above problem focus on the term rising cognitive performance, which implies population parameter is greater than certain value.

Therefore, for the above problem we can use, one sided test. As population parameter is increasing. We go for one sided right hypothesis test

Last option is correct.

One sided right hypothesis

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