The Central Limit Theorem states that as sample size becomes large a. the sampling distribution of sample means approaches normality b. the sampling...

5. The Central Limit Theorem states that as sample size becomes large                        

            a. the sampling distribution of sample means approaches normality

            b. the sampling distribution of sample means becomes larger

            c. the population distribution becomes normal

d. the sample distribution becomes normal

6. The sample standard deviation is a biased estimator of the population standard deviation.  When using sample means as estimators, we correct for bias in the formula for finding confidence intervals by                               a. using N - 1 rather than N

            b. using N rather than N - 1

            c. using s rather than Z

            d. squaring the value of Z