The common methods of statistical analysis for quantitative data have t test, analysis of variance and rank test. They seem simple, but are liable to be misused.

定量资料的一般性统计分析中比较常用的方法就是t检验、方差分析与秩和检验，看起来简单，却容易出错。

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Sadly, I have to admit, they seem so simple that no one believes they can work.

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While they might seem like simple determinations, the calculations involved in answering those questions are incredibly complex.

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Being that things are never as simple as they seem, the biggest servicers in the business are actually subsidiaries of the biggest banks in the land.

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