Mathematics
Mathematics, 10.06.2021 05:20, giovney

Suppose the ages at retirement for workers in the U. S. are normally distributed with an unknown population mean and standard deviation. If a random sample of 43 retirees is taken to estimate the mean retirement age, what t-score should be used to find a 80% confidence interval estimate for the population mean?

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Suppose the ages at retirement for workers in the U. S. are normally distributed with an unknown pop...

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