5. For the multiple choice questions, circle the best answer. For which of the following situations would the Rule for Sample Means not apply? A. A random sample of size 50 is drawn from a bell-shaped population. B. A random sample of size 20 is drawn from a skewed population. C. A random sample of size 50 is drawn from a skewed population. D. A random sample of size 20 is drawn from a bell-shaped population. Which one of the following statements is false? A. The sampling distribution of the sample mean is exactly normal if the observations are normallydistributed. B. The standard deviation of the sample mean decreases as the sample size increases. C. The sampling distribution of the sample mean becomes approximately normal for large samplesizes. D. The sampling distribution of any statistic becomes approximately normal for large samplesizes.
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Home » Mathematics » 5. For the multiple choice questions, circle the best answer. For which of the following situations would the Rule for Sample Means not apply? A. A random sample of size 50 is drawn from a bell-shaped population. B.