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А - B с D E F G H J K L Points 95% Confidence Interval for Average Age of Online College Students: 1 Age 2 3 4 5 Sample Mean:А B с D E F G Н K L 2 1 1 Margin of Error: Lower Bound: Upper Bound: *4 decimals *4 decimals *4 decimals Calculation: Calcula

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To construct the 95% confidence interval for average age of online college students and proportion of male students we use the pivots T=(X̅-\mu)*√n/s and Z=(p-P)/√(Var̂(p)̂) respectively , both follwiing t-distribution with degrees of freedom n-1. Calculations from the given data and solutions are given in the images...

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