Suppose x has a distribution with ? = 56 and ? = 8.   (a) If random samples of size n = 16 are selected, can we say anything about the x distribution of sample means? Yes, the x distribution is normal with mean ? x = 56 and ? x = 2.Yes, the x distribution is normal with mean ? x = 56 and ? x = 0.5.    Yes, the x distribution is normal with mean ? x = 56 and ? x = 8.No, the sample size is too small. (b) If the original x distribution is normal, can we say anything about the x distribution of random samples of size 16? Yes, the x distribution is normal with mean ? x = 56 and ? x = 2.Yes, the x distribution is normal with mean ? x = 56 and ? x = 0.5.    Yes, the x distribution is normal with mean ? x = 56 and ? x = 8.No, the sample size is too small. Find P(52 ≤ x ≤ 57). (Round your answer to four decimal places.)

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Suppose x has a distribution with ? = 56 and ? = 8.
 
(a)
If random samples of size n = 16 are selected, can we say anything about the x distribution of sample means?
Yes, the x distribution is normal with mean ? x = 56 and ? x = 2.Yes, the x distribution is normal with mean ? x = 56 and ? x = 0.5.    Yes, the x distribution is normal with mean ? x = 56 and ? x = 8.No, the sample size is too small.
(b)
If the original x distribution is normal, can we say anything about the x distribution of random samples of size 16?
Yes, the x distribution is normal with mean ? x = 56 and ? x = 2.Yes, the x distribution is normal with mean ? x = 56 and ? x = 0.5.    Yes, the x distribution is normal with mean ? x = 56 and ? x = 8.No, the sample size is too small.
Find P(52 ≤ x ≤ 57). (Round your answer to four decimal places.)
 
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