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As in Examples 2 and 5, assume that samples of size n = 2 are randomly selected with replacement. 7. Sampling Distribution of the Sample

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As in Examples 2 and 5, assume that samples of size n = 2 are randomly selected with replacement. 7. Sampling Distribution of the Sample Variance a. Find the value of the population variance o. b. Table 6-2 describes the sampling distribution of the sample mean. Construct a similar table representing the sampling distribution of the sample variance s'. Then combine values of s that are the same, as in Table 6-3 (Hint: See Example 2 on page 258 for Tables 6-2 and 6-3, which describe the sampling distribution of the sample mean.) c. Find the mean of the sampling distribution of the sample variance. d. Based on the preceding results, is the sample variance an unbiased estimator of the popula- tion variance? Why or why not? 8. Sampling Distribution of the Sample Standard Deviation For the following, round results to three decimal places. a. Find the value of the population standard deviation o

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