Standard error of the mean

Reference no: EM1390116

A sample of 10 observations is selected from a normal population for which the population standard deviation is known to be 4. The sample mean is 23. (Round your answers to 3 decimal places.)

a) The standard error of the mean is_____?

b) The 99 percent confidence interval for the population mean is between _____ and _____?

Reference no: EM1390116

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