The significance level for a Wilcoxon signed rank sum test is 0.05. The alternative hypothesis is stated as: The location of population 1 is left to the location of population 2. The appropriate critical values for a sample of size 20 (that is the number of nonzero differences is 20) are: $\begin{array}{|l|l|}
\hline\text { A. } & 60,150 . \
\hline \text { B. } & 52,150 . \
\hline \text { C. } & 60,158 . \
\hline \text { D. } & 52,158 . \
\hline
\end{array}$

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The Answer of The significance level for a Wilcoxon signed rank sum test is 0.05. The alternative hypothesis is stated as: The location of population 1 is left to the location of population 2. The appropriate critical values for a sample of size 20 (that is the number of nonzero differences is 20) are: $\begin{array}{|l|l|}
\hline\text { A. } & 60,150 . \
\hline \text { B. } & 52,150 . \
\hline \text { C. } & 60,158 . \
\hline \text { D. } & 52,158 . \
\hline
\end{array}$

The Significance Level for a Wilcoxon Signed Rank Sum Test