SE of ∆? [General Sta­tis­tics]

posted by Helmut Homepage – Vienna, Austria, 2020-10-02 14:56 (29 d 10:06 ago) – Posting: # 21964
Views: 469

Dear all,

now I’m confused.
In Chow & Liu* (\(\small{(3.3.1)}\) p.62, Table 3.4.1. p.65, and \(\small{(4.2.2)}\) p.83) the standard error of the difference is given as $$\hat{\sigma}_\textrm{d}\sqrt{\frac{1}{n_\textrm{1}}+\frac{1}{n_\textrm{2}}}$$ I beg your pardon?



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