SOLUTION: The amount of fluid in a half-liter (500 ml) bottle of diet cola is normally distributed but the population mean is not known. To develop an estimate of the mean, a sample of 27 bo

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Question 1077701: The amount of fluid in a half-liter (500 ml) bottle of diet cola is normally distributed but the population mean is not known. To develop an estimate of the mean, a sample of 27 bottles reveals a sample mean weight of 502.1 ml with a sample standard deviation of
1.20 ml. Construct and interpret a 90 percent confidence interval for the mean of the population of half-liter diet cola bottles.
Answer by Boreal(15235) About Me  (Show Source):
You can put this solution on YOUR website!
the sample mean is the point estimate of the population mean.
the interval is mean +/- t(df=26,0.95)*s/sqrt (27)
=502.1 +/ - 1.7056*1.2/sqrt (27); interval is 0.3939
=(501.71, 502.49)