Population mean equivalent

Reference no: EM1312648

A random sample of size 15 taken from a normally distributed population revealed a sample mean of 75 and a sample variance of 25. The upper limit of a 95% confidence interval for the population mean would equal:

A) 77.769

B) 72.231

C) 72.727

D) 77.273

Reference no: EM1312648

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