Use the same population of {4, 5, 9} from Example 1 in Section 6-4. Assume that samples
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Use the same population of {4, 5, 9} from Example 1 in Section 6-4. Assume that samples of size n = 2 are randomly selected without replacement.
a. Find µ and σ for the population.
b. After finding all samples of size n = 2 that can be obtained without replacement, find the population of all values of x by finding the mean of each sample of size n = 2.
c. Find the mean µx and standard deviation σx for the population of sample means found in part (b).
d. Verify that
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