A statistics practitioner would like to estimate a

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A statistics practitioner would like to estimate a population mean to within 50 units with 99% confidence given that the population standard deviation is 250.

a) What sample size should be used.

b) Repeat part (a) with a standard deviation of 50.

c) Repeat part (a) using a 95% confidence level.

d) Repeat part (a) when we wish to estimate the population mean to within 10 units.

Reference no: EM13628352

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