21/08/15 00:17:40.33 t0aQiYCz.net
>>570
ポアソン分布を仮定しても死亡率に有意差なし
> poisson.test(c(17,24),c(742,738))
Comparison of Poisson rates
data: c(17, 24) time base: c(742, 738)
count1 = 17, expected count1 = 20.555, p-value = 0.2787
alternative hypothesis: true rate ratio is not equal to 1
95 percent confidence interval:
0.3552361 1.3673435
sample estimates:
rate ratio
0.7045148