This Quantitative Methods II quiz assesses understanding of statistical principles in hypothesis testing and analysis of differences between means. It covers null hypotheses, z-scores, and normal distributions, enhancing skills crucial for advanced statistical studies.
True
False
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True
False
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True
False
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True
False
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True
False
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True
False
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True
False
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H0: μ1-μ2=2
H0: μ1-μ2=0
H0: μ1-μ2>0
H0: μ1-μ2
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H0: μD=2
H0: μD=0
H0: μD
H0: μD>0
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Independent samples
Dependent samples
Independent samples only if the sample sizes are equal
Dependent samples only if the sample sizes are equal
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True
False
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Only if the populations are normally distributed
Only if the samples are independent
Only if the populations are approximately normal and the sample sizes are large
All of the above
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60
59
58
35
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Reject the null hypothesis
Not to reject the null hypothesis
Choose two other independent samples
None of the above
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The sample sizes are both greater than 30
The populations are normal
The populations are non-normal and the sample sizes are large
All of the above
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.0158
.0316
.9842
.9684
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N – 1
N1+n2-1
N1+n2-2
N - 2
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True
False
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29
28
14
13
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0.1017
1.2713
0.3189
1.1275
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40
38
15
25
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The difference in the means of two dependent populations
The difference in the means of two independent populations
The matched pairs differences
The mean difference in the pairs of observations taken from two dependent samples
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Sample variances
Sample standard deviations
Sample sizes
Degrees of freedom for each sample
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