f you have two treatments that are independent samples and you are not assuming
ID: 3339531 • Letter: F
Question
f you have two treatments that are independent samples and you are not assuming a normal distribution of the data, which test(s) would be appropriate to use? Select all that apply.
Mann-Whitney U-test
Welch's t-test
Two-sample t-test
Sign test
Paired t-test
None of the above
If you have two treatments that are independent samples and you assume a normal distribution of the data, which test(s) would be appropriate to use? Select all that apply. Mann-Whitney
U-test Welch's
t-test Two-sample
t-test Sign test
Paired t-test
None of the above
Mann-Whitney U-test
Welch's t-test
Two-sample t-test
Sign test
Paired t-test
None of the above
Explanation / Answer
You cannot apply t test if distribution is not normal
So
t-test Two-sample
t-test Sign test
Paired t-test
are ruled out.and
Welchs t test is designed for unequal variances ,but the assumption of normality is maintained
So final answer is
Mann-Whitney U-test is a non parametric test that assumes that the data is not normally distributed
To anlyse the difference in medians of the two datasets we use Mann-Whitney U-test.
used for ordinal data
Mann-Whitney U-test is the answer
OPTIONA
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