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The mean annual salary of all (public) classroom teachers is $49000 with a standard deviation of 9200. Suppose 64 classroom teachers are selected at random.

The mean annual salary of all (public) classroom teachers is $49000 with a standard deviation of 9200. Suppose 64 classroom teachers are selected at random.
1. . What is the sampling distribution of xfor samples of this size?
2. . What is the probability the sample mean is between 50000 and 53000 dollars?

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