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A random sample of size 25 taken from a normally distributed population revealed a sample mean of 75 and a sample standard deviation of 15.
A random sample of size 25 taken from a normally distributed population revealed a sample mean of 75 and a sample standard deviation of 15. The upper limit of a 95% confidence interval for the population mean would equal to?
Select one:
A)70.05
B)79.95
C)69.12
D)80.88
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