Hi,
should be possible to make a simple AB test in Knime? E.g.
Test A: p1=0,122 (25), n1=205
Test B, p2=0,18 (35), n2=194
H0:p1≤p2; H1:p1>p2 (one side); α=5%; t value=-1.63; p=0.0515
Thanks,
Alfredo
Hi,
should be possible to make a simple AB test in Knime? E.g.
Test A: p1=0,122 (25), n1=205
Test B, p2=0,18 (35), n2=194
H0:p1≤p2; H1:p1>p2 (one side); α=5%; t value=-1.63; p=0.0515
Thanks,
Alfredo
Hi Alfredo,
I would suggest to use the R Snippet node for this. Specifically the prop.test function. The code would be something like the one below:
prop.test(c(25, 35), c(194,205))
Hope that helps,
Best,
Vincenzo
Hi Vincenzo,
thanks for the advice, I was able to calculate it.
Here's the R code.
Cheers
Alfredo
knime.out <- knime.in
p = prop.test(c(knime.in$n2, knime.in$n1),
c(knime.in$N2, knime.in$N1),
alt="greater",
conf.level=.95, correct=FALSE)
knime.out$p_value <- as.double(p[3])