Concept explainers
a)
To explain whether question does a significance test answer.
a)
Answer to Problem 9.54E
No.
Explanation of Solution
Given:
Is the sample or experiment properly designed?
No, it does not. A significance test cannot conclude anything about the design of the sample or experiment, because a significance tests assumes that the design is appropriate beforehand and thus does not check it itself.
b)
To explain whether question does a significance test answer.
b)
Answer to Problem 9.54E
Yes.
Explanation of Solution
Given:
Is the observed effect due to chance?
Yes. A significance tests determine how likely the observed effect is due to chance, by calculating a P-value.
c)
To explain whether question does a significance test answer.
c)
Answer to Problem 9.54E
No.
Explanation of Solution
Given:
Is the observed effect important?
No, it does not. A significance test cannot determine if an observed effect is important, because a significance test can only determine how likely the effect is to occur by chance but not how important that effect is.
Chapter 9 Solutions
Statistics Through Applications
Additional Math Textbook Solutions
An Introduction to Mathematical Statistics and Its Applications (6th Edition)
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Statistics for Business and Economics (13th Edition)
Statistics: The Art and Science of Learning from Data (4th Edition)
Elementary Statistics: Picturing the World (7th Edition)
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