Statistical Sciences 1024A/B Lecture Notes - Lecture 22: Point Estimation
30 Jan 2018
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Let the population be the whole students in western and we are interesting in the mean height. Let = mean height: do we know the exact value of, definition a parameter is a quantity specific to a population distribution and it is often. If the heights in western follow a certain distribution, say, f, then must be its mean unknown. Let be the chosen parameter: try to collect a data of x1, x2, . , xn: the sample mean x can be used to estimate, notice: there is a one sample of data x1, x2, . , xn there is one estimator: x (with line) x is often called a point estimator of (based on data x1, x2, .
