A Company That Fills Soft Drinks into Bottles Wishes to Establish

Multiple Choice

A company that fills soft drinks into bottles wishes to establish an -chart to monitor the average fill level in the bottles.To do this,the company has taken a series of samples of size n = 4 bottles.The overall average fill is 12.03 ounces.The average range for the subgroups has been .06 ounces.Based on this information,what is the upper limit of the 3-sigma control limit?

A) .729
B) .0437
C) 12.09
D) 12.074