The monthly growing season precipitation across villages in Tanzania is normally distributed, with a mean of 87

Question:

The monthly growing season precipitation across villages in Tanzania is normally distributed, with a mean of 87 centimeters and a standard deviation of 14.5 centimeters. Random samples of size 30 are drawn from this population, and the mean of each sample is determined.

Find the mean and standard deviation of the indicated sampling distribution of sample means. Then sketch a graph of the sampling distribution.

Distribution
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