PS 2 ni Ahs M. Epps

Which of the following statements related the Central Limit Theorem (CLT) is incorrect?

• The CLT claims that the sampling distribution of the sample mean of any population distribution approaches normality as the sample size tends to infinity.

• The mean of a sampling distribution is equal to the mean of the population distribution.

• The sampling distribution approaches normality more rapidly (i.e., a smaller sample size required) if the population is already normally distributed.

• All of the choices are correct.

• 2.699

• 5.699

• 6.99

• 69.9

John has sampled the zip codes of two million random Americans. Which of the following is the most appropriate measure of central tendency for these data?

• Mean

• Median

• Mode

• 50th Percentile

Dr. Gupta is disappointed with his students’ performance on his recent exam and decides to add 7 points to each student’s score. Which of the following measures does not increase by 7?

• Mean

• Median

• Mode

• Variance

• A

• B

• C

• D

Which of the following is not a one-to-one function?