Question

The sample observations are 5,4,3,2,4,7,9,9,8,5.Find 90% confidence interval of variance.

The sample observations are 5,4,3,2,4,7,9,9,8,5.Find 90% confidence interval of variance.

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Answer #1

#The R-code for critical value is
round(qchisq(c(0.1/2,1-0.1/2),9),4)
[1] 3.3251 16.9190

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