Questions
1. Prepare X‾ and R-charts using these data with the method described in the chapter.
2. Analyze the charts and comment on whether the process appears to be in control and stable.
3. Twelve additional samples of curetime data from the molding process were collected from an actual production run.
The data from these new samples are shown as follows. Update your control charts and compare the results with the previous data.
The X‾ and R-charts are drawn with the new data using the same control limits established before.
Comment on what the new charts show.
Attachment:- Analytics Exercise.rar