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Inferential Statistics Part 2: Confidence Intervals, Power, Sample Size and Goodness of Fit
Confidence Intervals
Point Estimation and Efficiency of Estimators
Point estimation is a single number calculated from sample data. When we get data of, say, 10 readings from a process, we can calculate the mean of the sample data. If we take five more samples, we can again calculate the mean based on the data of all 15 readings. Which of these is the real population mean? We actually get values of sample means 
and 
. None of these may actually be the ...
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