Question: Find the critical value t / 2 needed to construct a confidence interval of the given level with the given sample size. Round the answers

Find the critical valuet/ 2 needed to construct a confidence interval of the given level with the given sample size. Round the answers to three decimal places.

(a) For level80% and sample size 6 Critical value =

(b) For level95% and sample size 10 Critical value =

(d) For level99.5% and sample size 12 Critical value =

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