
Wilcoxon signed rank test
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8 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
If the p-value is less than or equal to your alpha, the null hypothesis is ____________.
accepted
not accepted
rejected
not to be rejected
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
This test is more powerful than the sign test because the sizes of the differences are totally ignored.
True
False
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The Wilcoxon signed-rank test is used to detect what?
Association
Normality
Difference
None of the above
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A researcher measured the same group of peoples' reactions while watching horror films and compared them to when watching romance films. The resulting data were skewed. What test should be used to analyse the data?
Independent t-test
Chi square test
Wilcoxon signed-rank test
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Wilcoxon sign rank test is a ____________ test.
Parametric
Non parametric
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Wilcoxon sign rank test is used to compare two unmatched groups of data.
True
False
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
In Wilcoxon sign rank test, are the observations with no difference removed from ranking?
Yes
No
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