You found a 95% confidence interval of 18.8 months to 48.0 months for the mean duration of
Question:
You found a 95% confidence interval of 18.8 months to 48.0 months for the mean duration of imprisonment, μ, of all East German political prisoners with
chronic PTSD.
a. Determine the margin of error, E.
b. Explain the meaning of E in this context in terms of the accuracy of the estimate.
c. Find the sample size required to have a margin of error of 12 months and a 99% confidence level.
d. Find a 99% confidence interval for the mean duration of imprisonment, μ, if a sample of the size determined in part (c) has a mean of 36.2 months.
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a E 480 1882 146 months b We are 95 confident that the maximum e...View the full answer
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