Forty-five (45) small communities in the US state of Connecticut reported on average 140 cases of larceny per year. Assume the population standard deviation is 43 cases per year b. Find a 90% confidence interval for the population mean annual number of reported larceny cases in such communities. What is the margin of error?

Calculus For The Life Sciences
2nd Edition
ISBN:9780321964038
Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Publisher:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Chapter13: Probability And Calculus
Section13.2: Expected Value And Variance Of Continuous Random Variables
Problem 10E
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Forty-five (45) small communities in the US state of Connecticut reported on average 140 cases
of larceny per year. Assume the population standard deviation is 43 cases per year

b. Find a 90% confidence interval for the population mean annual number of reported
larceny cases in such communities. What is the margin of error?

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ISBN:
9780321964038
Author:
GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Publisher:
Pearson Addison Wesley,