Question

In: Statistics and Probability

Of the following statements, which are correct? 1) Kolmogorov-Smirnov test can be used to compare the...

Of the following statements, which are correct?

1) Kolmogorov-Smirnov test can be used to compare the medians of two continuous populations based on two independent samples from the two populations

2) Sample data on one variables collected from each of n randomly selected subjects at two distinct time points are considered two independent samples.

3) Wilcoxon ranks-sum test can be used to compare population medians using paired random samples

4) Fisher's exact test can be used to see if proportions of an event (say, disease) in two independent samples are significantly different.

5) McNemar test can be used to compare two correlated proportions

6) Wilcoxon Signed-Ranks Sum Test can be used to test hypothesis about median of continuous symmetric population of pair differences of two correlated variables.

Solutions

Expert Solution

1.Kolmogorov-Smirnov test can be used to compare the medians of two continuous populations based on two independent samples from the two populations.

Answer : False, The Mann-Whitney U test is used.

2) Sample data on one variables collected from each of n randomly selected subjects at two distinct time points are considered two independent samples

Answer :False

3) Wilcoxon ranks-sum test can be used to compare population medians using paired random samples

Answer : False, Wilcoxon signed-rank test is used.

6) Wilcoxon Signed-Ranks Sum Test can be used to test hypothesis about median of continuous symmetric population of pair differences of two correlated variables.

Answer : True

5) McNemar test can be used to compare two correlated proportions

Answer : True

4) Fisher's exact test can be used to see if proportions of an event (say, disease) in two independent samples are significantly different.

Answer : True

orchestra answered 1 year ago
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