If 40 samples of size 21 were selected from a population of 22,493,we would expect the mean of the sample means and the population mean to be close but not exactly equal.

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Quizplus · Accepted Answer

This statement is true due to the central limit theorem, which states that as sample sizes increase, the distribution of sample means approaches a normal distribution with a mean equal to the population mean. However, there will always be some variation due to random sampling.

If 40 Samples of Size 21 Were Selected from a Population