. 2019 Jul 23;4(2):263–276. doi: 10.1007/s41669-019-0168-6

Table 2.

Non-parametric tests comparing means, medians, and distributions

Test	Significance of rejection^a
Wilcoxon rank-sum test (H₀: control and treatment from the same distribution)	***
Two-sample Kolmogorov–Smirnov test (H₀: control PDF = treatment PDF)	***
Fisher’s exact test (H₀: median WTP control = median WTP treatment)	***

Test

Significance of rejection^a

Wilcoxon rank-sum test (H₀: control and treatment from the same distribution)

***

Two-sample Kolmogorov–Smirnov test

(H₀: control PDF = treatment PDF)

***

Fisher’s exact test

(H₀: median WTP control = median WTP treatment)

***

PDF probability density function, WTP willingness to pay

^a***p < 0.01, **p < 0.05, *p < 0.1