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Lab Section:
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Page 1 of 5
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Lab 5.
Lab 5 was created to provide you with more practice problems for
the midterm and to give you more time to study for the midterm.
You need to turn in your lab either before your lab or during your lab
next week.
Please see the file “Lab5_due” on blackboard for more
information.
The key is – the sooner you finish the lab, the more prepared you will be for
the midterm!
If the research hypothesis is true, but the study has a low level of power:
A.
there is a high probability that the study will have a significant result.
B.
the null hypothesis will most likely be rejected.
C.
the probability of getting a significant result is low.
D.
alpha (i.e., the significance level) is most likely too lenient (for example, 0.10 instead of
0.05).
Let’s say we want to pull two sampling distributions of the means from a parent population.
For one
sampling distribution N = 5 and for the other distribution N = 25.
Keeping the number of repetitions
constant (e.g., 500), which of the following statements is
NOT
true?
A.
Both distributions of the means will have approximately the same mean as the parent
population.
B.
The variance of each distribution will be approximately equal to the square root of the
variance of the population divided by the square root of N.
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 Spring '08
 Dicorcia
 Normal Distribution, Standard Deviation, researcher, a. b. c., b. c. d.

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