Bivariate Statistics-Tests of Differences(英文版)(ppt 56页)
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Bivariate Statistics-Tests of Differences(英文版)目录：
一、Common Bivariate Tests
二、Differences Between Groups
三、Chi-Square Test
四、Degrees of Freedom
五、Chi-Square Test: Differences Among Groups Example
六、Differences Between Groups when Comparing Means
七、Null Hypothesis About Mean Differences Between Groups
八、t-Test for Difference of Means
九、Pooled estimate of the standard error
十、Degrees of Freedom
十一、t-Test for Difference of Means-example
十二、Comparing Two Groups when Comparing Proportions
十三、Differences Between Two Groups when Comparing Proportions
十四、A Z-Test for Differences of Proportions
十五、Z-Test for Differences of Proportions
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