The Thompson Company makes voltage protectors at its Midland, Georgia plant. During each shift,10 protectors are tested until failure, with some rated defective and others rated nondefective. The numbers of defective protectors for the last20 shifts are given in the following table.

Defective Voltage Protectors

Sample Number Number of Defects Sample NumberNumberofDefect

1 2 11 2

2 0 12 0

3 1 13 0

4 6 14 0

5 0 15 6

6 2 16 1

7 0 17 7

8 1 18 0

9 7 19 0

10 2 20 3

Step1of2:Determine the Upper Control Limit (UCL), Lower Control Limit (LCL), and centerline. Round your answer to two decimal places, if necessary.