The Wilcoxon signed-rank sum test involves:
a. calculating the difference between the sample data for each matched pair. (Pairs with zero differences are eliminated from the test at this stage, and sample size, n, is reduced to the remaining number of pairs with nonzero differences)
b. ranking the absolute values of the (nonzero) differences from the smallest (rank= 1 ) to the largest (rank = n)
c. attaching to each rank the sign of the original difference corresponding to it, calculating the sum of these signed ranks, and designating it as the test statistic, T
d. all of these
e. none of these
Question 2
A paired sample, two-sample t-test, corresponds to:
a. a Wilcoxon signed rank test for paired samples
b. a Wilcoxon rank sum test
c. a Wilcoxon signed rank test for one sample
d. a Friedman test for randomized block design
e. none of these
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data
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