Suppose a random sample of 49 is selected from a population with a standard deviation of 14. If the sample mean

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Home>Mathematics homework help>Numerical analysis homework help>Suppose a random sample of 49 is selected from a population with a standard deviation of 14. If the sample mean

Suppose a random sample of 49 is selected from a population with a standard deviation of 14. If the sample mean is 125, the 99% confidence interval to estimate the population mean is between ____________.

I have performed my analysis and have seen the answer but my struggle seems to be determining the t-value.