Wilcoxon Signed Rank Test

The Wilcoxon Signed Rank Test assumes that our sample is an SRS and will give trustworthy conclusions only if this condition is met.

The Wilcoxon Signed Rank Test assumes that your data come from a continuous distribution.

The Wilcoxon Signed Rank Sum Test is an alternative to the one-sample $t$-test when the guidelines for its use are not met (such as when the data is strongly skewed or has outliers).

	Data
Sample data goes here (enter numbers in columns):
Null Hypothesis:	$H_0: M=M_0=$
Alternative Hypothesis:	$H_a:M$ $M_0$
Level of Significance:	$\alpha=$

Sample Size:	$n=$
Sample Median:	$M=$
$W^{+}$ statistic:	$W^{+}=$
Mean of $W^{+}$ under $H_0$:	$\mu_{W^{+}}=$
Standard Deviation of $W^{+}$ under $H_0$ (with tie correction):	$\sigma_{W^{+}}=$
$z$ Value for Test (with continuity correction):	$z=$
Critical $z$ Value:	$z^{*}=$
$p$-value:	$p=$