Two-sample test of proportion x: Number of obs = 339
y: Number of obs = 205
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Variable | Mean Std. Err. z P>|z| [95% Conf. Interval]
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x | .02654 .0087299 .0094297 .0436503
y | .02439 .0107738 .0032738 .0455062
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diff | .00215 .0138667 -.0250282 .0293282
| under Ho: .0140081 0.15 0.878
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diff = prop(x) - prop(y) z = 0.1535
Ho: diff = 0
Ha: diff < 0 Ha: diff != 0 Ha: diff > 0
Pr(Z < z) = 0.5610 Pr(|Z| < |z|) = 0.8780 Pr(Z > z) = 0.4390
请问如何解释测试结果,两个样本之间有差异吗?