Explain normal curve-sampling distribution for sample mean

Reference no: EM13151896

Here is the sampling distribution for the sample mean for a sample of size 40. It looks more like a normal curve. Here is the sampling distribution for the sample mean for a sample of size 160. This looks even more like a normal curve. This looks almost exactly like a normal curve. What have we seen from the above example?

Reference no: EM13151896

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