When the difference in the location of two populations is to be compared based on observations from two independent samples,and the variable is measured on an ordinal scale,the ________ can be used.
A)Kolmogorov-Smirnov one-sample test
B)runs test
C)binomial test
D)Mann-Whitney U test

Question

Quizplus · Accepted Answer

The Mann-Whitney U test is used to compare the location of two populations based on observations from two independent samples when the variable is measured on an ordinal scale. The test is non-parametric, meaning it does not assume normality of data, and it tests whether one sample tends to have higher or lower values than the other sample. The other options are not suitable for this type of comparison on ordinal data.

When the Difference in the Location of Two Populations Is