Population with unknown parameters
The following sample was obtained from population with unknown parameters. Scores: 8, 12, 7, 3, 9
a. Compute the sample mean and standard deviation.
b. Compute the estimated standard error for M.
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If the size of sample equals the size of the population, we would not expect any error in estimating the population parameter.
An estimate of the population mean based upon a large sample is less reliable than an estimate made using a small sample.
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