The following are response times for customer service. Requirements are 0 to 14. Annual volume is 500,000. A defect costs $10. Use the table below to comment on the process. The control limits for ranges are closest to the following: Sample 1 2 3 4 Average Range 7-May 2 4 3 2 2.75 2 8-May 3 4 3 4 3.50 1 9-May 5 4 5 5 4.75 1 10-May 5 5 6 7 5.75 2 11-May 6 5 7 6 6.00 12-May 5 6 7 7 6.25 22 13-May 7 7 5 6 6.25 2 14-May 6 7 5 9 6.75 4 15-May 6 6 7 8 6.75 2 16-May 8 6' 7 7 7.00 2 17-May 6 6 7 9 7.00 3 18-May 9 7 8 6 7.50 3 19-May 7 10 7 9 8.25 3 20-May 8 7 8 11 8.50 4 21-May 10 7 8 11 9.00 4 22-May 12 8 9 9 9.50 4 23-May 10 12 10 9 10.25 3 24-May 7 12 10 9 9.50 5 Average: 7.0 2.72 6.21 and 0 4.97 and 2.03 8.35 and 0 4.37 and 1.06