Question: If a random sample of size n = 16 from a normal population with the variance sigma = 215 has the mean x =

If a random sample of size n = 16 from a normal

If a random sample of size n = 16 from a normal population with the variance sigma = 215 has the mean x = 62.2, construct a 91% confidence interval for the population mean . 56.3 < < 68.7 57.3 < < 67.1 60.6

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