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← Corrected Standard Error - Intro to Inferential Statistics

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Showing Revision 1 created 08/22/2016 by Udacity Robot.

  1. 合并方差是 15.2 标准误差则是 15.2 除以 n1 即 4
  2. 加上 15.2 除以 n2 结果约为 2.98