Assume that the heights of blocks are normally distributed, with a mean of 14.6 inches and a standard deviation of 2.5 inches. For a rad in sample of 22 blocks, answer the following:
1. what is the mean of the distribution of x?
2. What is the standard deviation of the distribution of x?
3: what is the probability of obtaining a sample mean height less than 13.3 inches?
4. What is the probability of obtaining a sample mean heigh greater than than 15.2 inches?
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