24. (2.5, 2.7) Use the following information to

answer each part.

10; 11; 15; 15; 17; 22

a. Compute the mean and standard deviation for this

data; use the sample formula for the standard

deviation.

b. What number is two standard deviations above

the mean of this data?

c. Express the number 13.7 in t

erms of the mean

and standard deviation of this data.