Construct the confidence interval for the population variance for the given values. Round your answers to one decimal place. n=12, s2=12.8, and c=0.95
95% confidence interval for 2 is
(n-1) S2 / /2 < 2 < (n-1) S2 / 1-/2
(12 - 1) * 12.8 / 21.920) < 2 < (12 - 1) * 12.8 / 3.816)
6.4234 < 2 < 36.8973
95% CI is (6.4 . 36.9)
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