statistical test sample

Statistical analysis was carried out for the sample data measured by a speedometer test bed, and corresponding mathematical models were established. The results from the model coincided with those from the measurement.

对车速表试验台检测所获得的样本数据进行统计分析，建立相应的数学模型，模型计算与样本实测数据计算结果高度吻合。

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The analysis tool is SPSS 13.0; statistical method is mean comparison and independent sample t test.

主要采用的分析工具是SPSS13.0, 采用的统计方法是均值比较法和独立样本t检验法.

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The test of goodness-of-fit is an important means to establish a statistical model. Many test statistics reach their own extreme value at an "ideal sample" but EDF statistics not. It certainly affects the power of the tests.

拟合优度检验是建立统计模型的一个重要手段，很多检验统计量用一个理想样本能达到它们自己的极值，但EDF统计量做不到，这无疑会影响检验的势。

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