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Module 3-Milestone 1: Confidence Intervals and Sample Size Determination for the Population Math ...

Module 3-Milestone 1: Confidence Intervals and Sample Size Determination for the Population Math ...

Q Instructions Complete the Module 3 Milestone 1: Confidence Intervals and Sample Size Determination for the Population Math and Population Proportion Practice Worksheet.

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1. Standard error = 19/?21 = 4.146 DF = 21 – 1 = 20 Critical t = 1.725 Point estimate = 40 Margin of error = 1.725 * 4.146 = 7.152 90% confidence interval = 40 ± 7.152