Question: A simple random sample of size n=40 is drawn from a population. The sample mean is found tk be x =120.9 and the samlle standard

A simple random sample of size n=40 is drawn from a population. The sample mean is found tk be x =120.9 and the samlle standard deviation is found to be s=12.4. Construct a 99% confidence interval for the population mean

The lower bound is

The upper bound is

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