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- From: shimo@bcl.t.u-tokyo.ac.jp (Hidetoshi SHIMODAIRA)
- Newsgroups: sci.math.stat
- Subject: asymptotic variance of correlation coefficient?
- Message-ID: <SHIMO.92Sep14203744@volga.bcl.t.u-tokyo.ac.jp>
- Date: 14 Sep 92 11:37:44 GMT
- Sender: news@keisu-s.t.u-tokyo.ac.jp
- Reply-To: Hidetoshi SHIMODAIRA <shimo@bcl.t.u-tokyo.ac.jp>
- Distribution: sci
- Organization: Dept. of Math. Eng. and Information Physics, U of Tokyo
- Lines: 22
- Nntp-Posting-Host: volga
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-
- Dear statisticians:
-
- I am a graduate student and reading RAO's text book, Linear
- Statistical Inference and Its Applications. I have a little question
- as follows.
-
- In the page 362 of the book, he says: The asymptotic variance of
- the product moment correlation coefficient $r$ is $(1-\rho^2)^2/n$.
- He uses this result to derive the Tanh^{-1} transformation of the
- correlation coefficient.
-
- But I cannot understand why the asymptotic variance of r is
- (1-rho^2)^2/n. If someone know the proof or any pointers, please let
- me know these.
-
- Thank you,
-
-
- //\\\
- @ @ Hidetoshi SHIMODAIRA <shimo@bcl.t.u-tokyo.ac.jp>
- O Dept. of Math. Eng. & Info. Physics, Univ. of Tokyo
-