Sampling Distribution Of Mean Formula, The larger the sample size, the closer the sampling distribution of the mean would be to a normal distribution. . If you look closely you can see that the sampling distributions do have a slight positive skew. Figure 2 shows how closely the sampling distribution of the mean approximates a normal distribution even when the parent population is very non-normal. There are 15,504 different samples of size 5 that can be drawn. Calculate the mean of the sampling distribution (same as population mean). 402 hours. 4$$8. The probability distribution of these sample means is called the sampling distribution of the sample means. Calculate the standard deviation of the sampling distribution (population SD divided by √n).

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