June 27th, 2009, 02:04 AM
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 | Flow Master | | Join Date: Dec 2007 Location: Zeitgeist
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Quote:
Originally Posted by tagiraldo  Sample of 16 cars have been randomly selected and the engine noise in the cabin has been measured.
The sample mean is 30dB and sample standard deviation is 5dB.
Calculate 95% interval estimate for the population mean given that the noise follows approximately Normal Distribution. | Read this thread: constructing a confidence interval please help
(or any of the other dozens of similar threads found using the MHF Search Tool).
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