The p-value is the probability of the test z statistic taking on a value as least extreme as 12.67764108 under the assumption the null hypothesis is true. So the tool looked up P(z > 12.67764108).
M F.
asked • 05/05/212propztest results
the sample says
x1: 797
n1:3066
x2:275
n2:2293
p1:=p2<p2>p2
p1>p2
z=12.67764108
p=4.071111688E-37
how did they get p value?
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