A control chart plots 25 samples per day, 7 days a week. The process runs 24 hours per day and the chart is currently in control.

1)On average, an observation will fall into either Zone A or Zone B approximately once every ______ hours.

Group of answer choices

1

2

3

4

5

6

The design specification for the length of a component is 5.700 + 0.0378. Given the following values for the -chart that monitors the process: = 5.700 LCL = 5.673 UCL = 5.727

8.The quality level of the process is _______ sigma.

Enter one significant digit past the decimal point (e.g., 1.9).

9.Does the process meet the definition of true 6 sigma quality?

Group of answer choices

Yes

No

10. A change to the process has resulted in new control chart values:

= 5.700 LCL = 5.668 UCL = 5.732

This change has__________ the quality of the process.

Group of answer choices

increased

decreased

not affected