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A Random Sample of Size 15 Is Taken from a Normally

Question 79

Multiple Choice

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


A) 77.530
B) 72.231
C) 74.727
D) 79.273

Correct Answer:

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