Qualitatively there is no doubt that higher taxes have reduced smoking, but with that said, it's very difficult from a statistical standpoint to figure out what caused the real reduction.
从品质上说,毫无疑问,施行高税额已经减少了抽烟现象,但是就是如此说法,从统计学观点来看也很难确定究竟是什么导致了真正的减少。
Conclusions the reduction in death from all causes among patients with COPD in the combination-therapy group did not reach the predetermined level of statistical significance.
结论:联合治疗对COPD患者死亡率的降低并未达到预期的水平和统计学意义。
Experiments show that this system is particularly effective for statistical noise reduction within the complete television image bandwidth.
实时处理实验表明,该系统对降低图像的统计型全频带噪声特别有效。
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