6. Parameter Estimation and Confidence Intervals: Estimation
Constructing a 95% Confidence Interval for the Population Mean
Consider a normally distributed population with unknown mean #\mu# and standard deviation #\sigma = 2.5#.
From this population, a sample of size #n=124# is drawn. The mean of the sample is #\bar{X}=13.9#.
Construct the #95\%# confidence interval for the population mean #\mu# on the basis of this sample. Round your answers to three decimal places.
#CI_{\mu,\,95\%}=\, (##, \,\,\,##)#
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