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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 images and images. None of these may actually be the ...

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