Statistics : Type II

Study concepts, example questions & explanations for Statistics

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Example Questions

Example Question #1 : Error

Type II errors occur when a researcher incorrectly __________ the ___________ hypothesis; therefore, they erroneously reject the __________ hypothesis.  

Possible Answers:

rejects. . . null. . . alternative

rejects. . . alternative. . . null

accepts. . . null. . . alternative

accepts. . . alternative. . . null

None of these

Correct answer:

accepts. . . null. . . alternative


Type II errors occur when we fail to reject a false null hypothesis. As a result, the researcher will incorrectly accept the null hypothesis and erroneously reject the alternative hypothesis. This commonly occurs when sample sizes are small. Larger sample sizes ensure that statistical measures will identify a practical difference when one truly exists. 

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