A glass manufacturer wants to measure flaws in sheets of float glass produced using control charts. The company would like to address problems that the chart highlights until the process becomes stable, then use the chart as an ongoing quality monitoring tool. The company has given you the following data on the number of flaws per sheet of float glass for the past 19 days of production:

1. What control chart would you use to monitor this process and why?

2. Using 3σ limits, construct the appropriate control chart for this process.

3. Plot the data given, and determine whether the float glass production is in control.

Transcribed Image Text:

Day 4 10 11 12 14 15 19 3 13 16 17 18 3 Flaws 10 2 8. 13 9. 3 14 11 1 7.