In a sign test, the following information is given: number of zero differences = 3, number of positive differences = 20, and number of negative differences = 5. The value of the standardised test statistic z is: $\begin{array}{|l|l|}
\hline\text { A. } & 5 . \
\hline \text { B. } & 4 . \
\hline \text { C. } & 3 . \
\hline \text { D. } & 2 . \
\hline
\end{array}$

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The Answer of In a sign test, the following information is given: number of zero differences = 3, number of positive differences = 20, and number of negative differences = 5. The value of the standardised test statistic z is: $\begin{array}{|l|l|}
\hline\text { A. } & 5 . \
\hline \text { B. } & 4 . \
\hline \text { C. } & 3 . \
\hline \text { D. } & 2 . \
\hline
\end{array}$

In a Sign Test, the Following Information Is Given: Number