Question 1

When testing a hypothesis about µ, you will most likely compare a ______ to a hypothetical test value.

Accepted Answer

A)   µ
B)   x̄
C)   
D)   X

Question 2

When we reject the null hypothesis we ______.

Accepted Answer

A)   conclude that we have found statistical significance
B)   conclude that the null hypothesis is improbable
C)   both a and b
D)   none of these

Question 3

It is impossible to prove something in statistics because ______.

Accepted Answer

A)   statistics don't really tell us anything
B)   statistics are inherently probabilistic
C)   statistics are frequently misinterpreted
D)   none of these

Question 4

A two-tailed test always ______.

Accepted Answer

A)   is non-directional
B)   uses ≠ in the alternative hypothesis
C)   both a and b
D)   none of these

Question 5

A researcher that rejects the null when they should have retained the null has committed a Type I error.

Accepted Answer

A) True 
 B)False

Question 6

Which of the following could appear in a null hypothesis?

Accepted Answer

A)   =
B)   >
C)   
D)   none of these

Question 7

The most common significance level is ______.

Accepted Answer

A)   1%
B)   5%
C)   10%
D)   99%

Question 8

To minimize Type II error, you can ______.

Accepted Answer

A)   decrease 
B)   increase n
C)   decrease p
D)   increase µ

Question 9

What is the following? H0

Accepted Answer

A)   null hypothesis
B)   alternative hypothesis
C)   nil hypothesis
D)   none of these

Question 10

The first step of the hypothesis testing process is ______.

Accepted Answer

A)   state the hypotheses
B)   conduct the statistical test
C)   state the research question
D)   derive a decision rule

Question 11

If your research question states "Did those that were trained have higher job performance than those who were not trained?", your alternative hypothesis is likely to contain >.

Accepted Answer

A) True 
 B)False

Question 12

When we retain the null hypothesis we conclude ______.

Accepted Answer

A)   the null hypothesis, although unlikely, is plausible
B)   the alternative hypothesis is more probable than the null hypothesis
C)   the null hypothesis is more plausible than the alternative hypothesis
D)   we do not have enough evidence to reject the alternative

Question 13

If the null contains ≤, the alternative must contain the ≥.

Accepted Answer

A) True 
 B)False

Exam 7: Hypothesis Testing

A two-tailed test always ______.

Correct Answer
verified

A researcher that rejects the null when they should have retained the null has committed a Type I error.

Correct Answer
verified

The most common significance level is ______.

Correct Answer
verified

When testing a hypothesis about µ, you will most likely compare a ______ to a hypothetical test value.

Correct Answer
verified

When we reject the null hypothesis we ______.

Correct Answer
verified

It is impossible to prove something in statistics because ______.

Correct Answer
verified

If the null contains ≤, the alternative must contain the ≥.

Correct Answer
verified

Which of the following could appear in a null hypothesis?

Correct Answer
verified

When we retain the null hypothesis we conclude ______.

Correct Answer
verified

The first step of the hypothesis testing process is ______.

Correct Answer
verified

What is the following? H₀

Correct Answer
verified

To minimize Type II error, you can ______.

Correct Answer
verified

If your research question states "Did those that were trained have higher job performance than those who were not trained?", your alternative hypothesis is likely to contain >.

Correct Answer
verified

Exam 7: Hypothesis Testing

A two-tailed test always ______.

Correct AnswerverifiedShow Answer

A researcher that rejects the null when they should have retained the null has committed a Type I error.

Correct AnswerverifiedShow Answer

The most common significance level is ______.

Correct AnswerverifiedShow Answer

When testing a hypothesis about µ, you will most likely compare a ______ to a hypothetical test value.

Correct AnswerverifiedShow Answer

When we reject the null hypothesis we ______.

Correct AnswerverifiedShow Answer

It is impossible to prove something in statistics because ______.

Correct AnswerverifiedShow Answer

If the null contains ≤, the alternative must contain the ≥.

Correct AnswerverifiedShow Answer

Which of the following could appear in a null hypothesis?

Correct AnswerverifiedShow Answer

When we retain the null hypothesis we conclude ______.

Correct AnswerverifiedShow Answer

The first step of the hypothesis testing process is ______.

Correct AnswerverifiedShow Answer

What is the following? H0

Correct AnswerverifiedShow Answer

To minimize Type II error, you can ______.

Correct AnswerverifiedShow Answer

If your research question states "Did those that were trained have higher job performance than those who were not trained?", your alternative hypothesis is likely to contain >.

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
verified

Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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What is the following? H₀

Correct Answer
verified

Correct Answer
verified

Correct Answer
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