With Minitab, open " GB_Data.mpx " and use the " Pre_Post Delay Minutes " and " Project Phase " columns in the tab Operating Room to:

1. Decide which test would you use to confirm a difference in the mean from pre to post data and perform that test
   • Is there a statistically significant difference? How do you know?
   • Was the goal met?
2. Create an appropriate control chart with stages
3. Run the control chart for the data and generate it
4. Compare the phases
5. Run a statistical analysis of the Mean & Std. Dev.
6. Run the control chart for the last phase data and freeze UCL & LCL and generate it
   • Does the data indicate a statistically improved state? If so, how?
   • Why is it critical to freeze the UCL & LCL once your project is sustained?
   • If this were your project, what would you do next?

Price: $8.77

Solution: The downloadable solution consists of 4 pages, 477 words and 4 charts.
Deliverable: Word Document