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Consider a normal population distribution with the value of a known. (a) What is the confidence level for the interval 72.850
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Answer #1

Solution @ a XL 2.85 va Zalz 2.85 P 12<2.85) = 0.4978 6 = 2x0.4978 gg-56% ㅌ b XI 20 h Zoli 2 PLZK 2) = 0.4772 Co 2 x 0.4772 9

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