Back to Estimate population parameters with margin of error — Problem 5 · Task Set 15
Exercises: Estimate a Population Mean or Proportion with a Margin of Error
Work through each section in order. Show your work where indicated. When you report an estimate, give the point estimate, the margin of error (about two standard deviations of the simulated sampling distribution), and the interval estimate, and interpret it in context.
Grade 11·21 problems·~45 min·Common Core Math - HS Statistics and Probability·group·hss-ic-b-4
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A
Fluency Practice
1.
A random sample of town workers gives a mean commute minutes. The simulated
sampling distribution of has standard deviation about minutes. What is the
margin of error, in minutes? (margin of error = about two standard deviations)