Question
A soccer ball manufacturer wants to estimate the mean circumference of soccer balls with 0.05in. (a) determine the minimum sample required to construct a 90%
A soccer ball manufacturer wants to estimate the mean circumference of soccer balls with 0.05in.
(a) determine the minimum sample required to construct a 90% confidence interval for the population mean. Assume standard deviation is 0.25 in.
(b) repeat part (a) assuming a standard deviation 0f 0.40in
Which standard deviation requires a larger sample size?
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Making Hard Decisions with decision tools
Authors: Robert Clemen, Terence Reilly
3rd edition
538797576, 978-0538797573
