The Bureau of Justice Statistics provides information on prison sentences in the document National Corrections Reporting Program.
Question:
a. Find a 95% confidence interval for the mean maximum sentence of all murders. Assume a population standard deviation of 30 months.
b. Obtain a normal probability plot, boxplot, histogram, and stem-and-leaf diagram of the data.
c. Remove the outliers (if any) from the data, and then repeat part (a).
d. Comment on the advisability of using the z-interval procedure on these data.
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Step by Step Answer:
a Using Minitab retrieve the data from the WeissStats CD Then choose Stat Basic statistics 1Sample z ...View the full answer
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