In a Normal Approximation to the Wilcoxon Rank Sum Test

Multiple Choice

In a normal approximation to the Wilcoxon rank sum test, the standardised test statistic is calculated as z = 1.80. For a two- tail test, the p-value is:

A) 0.0359.
B) 0.4641.
C) 0.2321.
D) 0.0718.