Question: a. Estimate 2 with 90% confidence given that n = 15 and s2 = 12. b. Repeat part (a) with n = 30. c. What

a. Estimate σ2 with 90% confidence given that n = 15 and s2 = 12.

b. Repeat part (a) with n = 30.

c. What is the effect of increasing the sample size?



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