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posted by  Colo Frustrated on 10/5/2008 2:47:21 PM  |  status: Live  

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Question Details:
A random sample of 41 basketball players from The Official NBA
Basketball Encyclopedia gave the sample standard deviation for
player height as s=3.32 inches. How many more players from this
encyclopedia should be included in the sample to be 99% sure that
the sample mean is within 0.50 inches of the population mean of all
players in this book?

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posted by "DONALD" on 10/6/2008 2:16:47 PM  |  status: Live
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Response Details:
The given information is A random sample of 41 basketball players from The Official NBA
Basketball Encyclopedia gave the sample standard deviation for
player height as s=3.32 inches. How many more players from this
encyclopedia should be included in the sample to be 99% sure that
the sample mean is within 0.50(E) inches of the population mean of all
players in this book
The formula for calculating the sample size is
Here Zα/2 = 2.58        [Normal table value at 99% CI]
Substitute the values we have
DONALD
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