Use the Following Table to Answer the Question(s) Below

Multiple Choice

Use the following table to answer the question(s) below.

-Close tolerances are required in the manufacturing section of an automotive parts business. Since the customers demand quality, the owner wants to monitor the operation closely using statistical process control. After taking 8 samples of size 4, the owner finds himself with the data in the table above. What is the center line for a chart that will monitor process dispersion?

A) 0.45
B) 0.30
C) 0.00
D) 0.75
E) cannot be determined from the information given