2. A population has mean 128 and standard deviation 22. a. Find the mean and standard deviation of X for samples of size 36. b. Find the probability that the mean of a sample of size 36 will be within...


2. A population has mean 128 and standard deviation 22.<br>a. Find the mean and standard deviation of X for samples of size 36.<br>b. Find the probability that the mean of a sample of size 36 will be within 10 units<br>of the population mean, that is, between 118 and 138.<br>

Extracted text: 2. A population has mean 128 and standard deviation 22. a. Find the mean and standard deviation of X for samples of size 36. b. Find the probability that the mean of a sample of size 36 will be within 10 units of the population mean, that is, between 118 and 138.

Jun 11, 2022
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