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A simple random sample of size n equals n=40 is drawn from a population. The sample...

A simple random sample of size n equals n=40 is drawn from a population. The sample mean is found to be x=120.4 and the sample standard deviation is found to be s equals s=12.5. Construct a​ 99% confidence interval for the population mean.

a) The lower bound is __

b) The upper bound is ___

(Round to two decimal places as​ needed.)

Math   Statistics-And-Probability   
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