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Question Completion Status: QUESTION 1 2 points CI (Z) calc: A population is normally distributed with a standard deviation of 3.62. A sample of 12

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Question Completion Status: QUESTION 1 2 points CI (Z) calc: A population is normally distributed with a standard deviation of 3.62. A sample of 12 items from the population yield a mean of 26.6. Determine the upper boundary of a 95% Cl. Round to the nearest hundredth QUESTION 2 2 points CI (Z) calc 2: A population is normally distributed with a standard deviation of 3.95. A sample of 6 items from the population yield a mean of 21.2. Determine the upper boundary of a 90% Cl. Round to the nearest hundredth QUESTION 3 Untitled document 2 points S Practice CI (Z-app) calc

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