Repeat Exercise using variances instead of means. Use the population of ages {56, 49, 58, 46} of
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Repeat Exercise using variances instead of means.
Use the population of ages {56, 49, 58, 46} of the four U.S. presidents (Lincoln, Garfield, McKinley, Kennedy) when they were assassinated in office. Assume that random samples of size n = 2 are selected with replacement.
In exercise, a. After identifying the 16 different possible samples, find the mean of each sample, then construct a table representing the sampling distribution of the sample mean. In the table, combine values of the sample mean that are the same.
b. Compare the mean of the population {56, 49, 58, 46} to the mean of the sampling distribution of the sample mean.
c. Do the sample means target the value of the population mean? In general, do sample means make good estimators of population means? Why or why not?
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a The possible samples of size 2 are 56 56 56 49 56 58 56 4...View the full answer
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