<P> The Wilcoxon signed - rank test is a non-parametric statistical hypothesis test used to compare two related samples , matched samples , or repeated measurements on a single sample to assess whether their population mean ranks differ ( i.e. it is a paired difference test ) . It can be used as an alternative to the paired Student 's t - test , t - test for matched pairs , or the t - test for dependent samples when the population can not be assumed to be normally distributed . A Wilcoxon signed - rank test is a nonparametric test that can be used to determine whether two dependent samples were selected from populations having the same distribution . </P>
<P> The Wilcoxon signed - rank test is a non-parametric statistical hypothesis test used to compare two related samples , matched samples , or repeated measurements on a single sample to assess whether their population mean ranks differ ( i.e. it is a paired difference test ) . It can be used as an alternative to the paired Student 's t - test , t - test for matched pairs , or the t - test for dependent samples when the population can not be assumed to be normally distributed . A Wilcoxon signed - rank test is a nonparametric test that can be used to determine whether two dependent samples were selected from populations having the same distribution . </P>
what does the wilcoxon signed rank test measure
what does the wilcoxon signed rank test measure
two related samples , matched samples , or repeated measurements on a single sample to assess whether their population mean ranks differ ( i.e. it is a paired difference test )
two related samples , matched samples , or repeated measurements on a single sample to assess whether their population mean ranks differ ( i.e. it is a paired difference test )