Week 4 Practice Quiz
1.
The null hypothesis
A.
B.
Will always contain the equal sign.
C.
Cannot include values less than 0.
D.
Both a and b are correct.
The correct answer is d. It
could include values less than
0 and it will always include the
equal sign. The equal sign
never appears in the alternate
hypothesis.
2.
The alternate
hypothesis
A.
B.
Will always contain the equal sign.
C.
Tells the value of the sample mean.
D.
None of the above.
The correct answer
is a. That is its
whole job.
3.
The level of significance
A.
Is frequently .
05 or .01
B.
Can be any value between 0 and 1.
C.
Is the likelihood of rejecting the null hypothesis
D.
All of the above.
The correct answer is d.
All these statements are
correct.
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A Type I error is
A.
The correct
decision
B.
A value determined from the test statis
C.
Rejecting the null hypothesis when it
D.
Accepting the null hypothesis when it
The correct answer is c. That's
its definition. Type I and Type
II error do not include
probabilities.
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 Spring '10
 BARCUS
 Statistics, Null hypothesis, Correct Answer, Statistical hypothesis testing

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