For large n, the sampling distribution of S is some times approximated with a normal distribution having the mean Iuml and the variance Iuml 2 2n (see Exercise 8 28 on page 250) Show that this approximation leads to the following (1 Iuml ) 100 large sample confidence interval for Iuml

Question: For large n, the sampling distribution of S is some-times approximated with a normal distribution having the mean Ï and the variance Ï2/2n (see Exercise

For large n, the sampling of S is some-times approximated with a normal having the mean Ïƒ and the variance Ïƒ2/2n (see Exercise 8.28 on page 250). Show that this approximation leads to the following (1 €“ Ïƒ) 100% large- sample confidence interval for Ïƒ:

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