language: R (R-2.11.1)
date: 134 days 19 hours ago
link:
可見度: public 
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x1 = 1.26;
s1 = 0.32;
x2 = 0.78;
s2 = 0.32;
n = 7;
t = (x1 - x2) / sqrt(((s1 * s1) / n) + ((s2 * s2) / n));
pt(t, n - 1);