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

Multiple Choice

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

-A machine shop owner wishes to monitor the diameter of an engine boring operation where the piston bore should be 4.25". He obtains 8 samples of 5 and records the data in the table above. What should the lower and upper control limits be for an X-bar chart?

A) (5.00, 8.00)
B) (-1.50, 1.50)
C) (4.33, 5.12)
D) (0.00, 1.45)
E) (-5.10, 5.10)