Question: a. Find the value of the population variance 2. b. Table 6-2 describes the sampling distribution of the sample mean. Construct a similar table representing

a. Find the value of the population variance σ2.
b. Table 6-2 describes the sampling distribution of the sample mean. Construct a similar table representing the sampling distribution of the sample variance s2. Then combine values of s2 that are the same, as in Table 6-3.
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 population variance? Why or why not?

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