6E MC

6E MC

12th Grade

3 Qs

quiz-placeholder

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6E MC

6E MC

Assessment

Quiz

Mathematics

12th Grade

Medium

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3 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A researcher plans to conduct a test of hypotheses at the alpha = 0.01 significance level.  She designs her study to have a power of 0.90 at a particular alternative value of the parameter of interest.  The probability that the researcher will commit a Type I error is

0.01

0.10

0.89

0.90

the P-value

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The power of a statistical test of hypotheses is

the smallest significance level at which the data will allow you to reject the null hypothesis.

equal to 1 - P-value

the probability that the test will reject both one-sided and two-sided hypotheses.

the probability that a significance test will reject the null hypothesis when a particular alternative value of the parameter is true.

equal to 1 - P(Type I error)

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following will increase the power of a significance test?

Increase the Type II error probability

Increase the sample size

Reject the null hypothesis only if the P-value is smaller than alpha

Decrease the alpha level

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