For each data set, answer the following questions.

Data Set A:

13, 14, 15

Data Set B:

11, 12, 13, 14, 15, 16, 17

Data Set C:

8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20

(a-c) Find the mean, sample standard deviation-treating the data as a sample, and the population standard deviation-treating the data as a population. (Round your answers to 4 decimal places.)

Data Set A Data Set B Data Set C

Mean

Sample Standard Deviation

Population Standard Deviation