Assignment:
University set from previous problem concerning the ages and maintenance costs of five similar printing presses:
a. Calculate the average maintenance cost of the presses.
b. Calculate the standard deviation of the maintenance costs of the presses.
c. Calculate the range of the maintenance costs of the presses.
d. Calculate the coefficient of variation of the maintenance costs of the presses.
Your answer must be typed, double-spaced, Times New Roman font (size 12), one-inch margins on all sides, APA format and also include references.