Questions 13 - 16.The following are the means and standard deviations of the amounts of salaries of the employees of two corporations:Sky and Earth. (Choose correct multiple choice answers.)

SkyCorporationEarth Corporation

Mean$70,000$70,000

StandardDeviation$5,000$50,000

N (number ofemployees)100100

13.Interpret the standard deviation of $5,000. **Note: The format of the sentence that interprets the standard deviation is: (Name of the variable) is typically (amount of standard deviation) away from the mean of xxx. Here the variable name is the amounts of salaries, the standard deviation amount is $5,000, and the mean is $70,000.

A. The standard deviation of $5,000 at the Sky Corporation indicates that the salaries of the employees are typically $5,000 away from the mean of $70,000 (from roughly $65,000 to $75,000).

B. The standard deviation of $5,000 at the Sky Corporation indicates that the salaries of the employees are $5,000 above the mean of $70,000.

C. The standard deviation of $5,000 at the Sky Corporation indicates that the salaries of the employees are $5,000below the mean of $70,000.

D. The standard deviation of $5,000 at the Sky Corporation indicates that the salaries of the employees are $5,000 more than the mean of $70,000.

QUESTION 14

14.Interpret the standard deviation of $50,000.

A. The standard deviation of $50,000 at the Earth Corporation indicates that the salaries of the employees are typically $50 away fromthe mean of $70,000.

B. The standard deviation of $50,000 at the Earth Corporation indicates that the salaries of the employees are typically $50,000 above the mean of $70,000.

C. The standard deviation of $50,000 at the Earth Corporation indicates that the salaries of the employees are typically $50,000below the mean of $70,000.

D. The standard deviation of $50,000 at the Earth Corporation indicates that the salaries of the employees are typically$50,000 away from the mean of $70,000.

QUESTION 15

15.Compare the two standard deviations; what do they tell us about the salaries of the employees of the two corporations?More specifically, which of the following statements is true?

A. The typical salaries at the Sky Corporation are closer to the mean and the typical salaries at the Earth Corporation are further away from the mean.

B. The typical salaries at the Sky Corporation are lower than the average and the typical salaries at the Earth Corporation are higher than the average.

C. There is no difference in the salary variations of the two corporations.

D. The average salaries at the Sky Corporation are higher than the average salaries at the Earth Corporation.

E. The average salaries at the Sky Corporation arelower than the average salaries at the Earth Corporation.