SOLUTION: Forty-nine items are randomly selected from a population of 500 items. The sample mean is 40 and the sample standard deviation 9.
Develop a 99% confidence interval for
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Develop a 99% confidence interval for
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Question 905860: Forty-nine items are randomly selected from a population of 500 items. The sample mean is 40 and the sample standard deviation 9.
Develop a 99% confidence interval for the population mean. (Round your answers to 3 decimal places.)
The confidence interval is between_______ and__________.
I got 36.217 and 43.783 However this is wrong. Answer by ewatrrr(24785) (Show Source):
You can put this solution on YOUR website! (Round your answers to 3 decimal places.)
ME = 2.576(9/sqrt(49) = 3.312
40 - 3.312 = 36.688
40 + 3.312 = 43.312
