Question: 1. Shape a. If the random variable X has a normal distribution , then the random variable x-bar has a shape which is a ________________

1.Shape

a.If the random variable X has a normal distribution, then the random variable x-bar has a shape which is a ________________ distribution.

b.If the random variable X does NOT have a normal distribution, then the random variable x- bar has a shape which is an______________ ________________ distribution if n is large enough (n must be _____________________).

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