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Suppose you are given the following 10 observations: 2.20, 1.50, 1.68, 1.89, 0.95, 1.59, 1.58, 1.55, 0.5, 1.09. (a) Construct a 90% confidence interval based

Suppose you are given the following 10 observations: 2.20, 1.50, 1.68, 1.89, 0.95, 1.59, 1.58, 1.55, 0.5, 1.09.

(a) Construct a 90% confidence interval based on the t distribution. (b) Construct a 90% confidence interval based on the normal distribution.

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