Here is the homework for the fourth week of your training:
(Homework due before next class: June 15th) Homework:
1. Watch this video
Hypothesis Testing using SigmaXL
Questions:
- 1. Which customer Type ( 1, 2 or 3 ) has a mean Customer Satisfaction score that is Statistically Different to 3.5 ?
- 2. What p-value does this customer category produce in the hypothesis test ?
2.
Read the PDF ‘Control Charts Summary’, below is a link to the PDF
Control Charts Summary
Answer these 3 Questions:
1. What is Common Cause Variation ?
2. What is Special Cause Variation ?
3. What are the ‘8 Rules’ for Special Cause Variation ?
3. Read the PDF ‘Introduction to Design of Experiments’, below is a link to the PDF
Answer these 6 questions:
1. What are ‘Factors’.
2. What are ‘Continuous Variables’ ?
3. What are ‘Discrete Variables’ ?
4. What are ‘Responses’ ?
5. What are ‘Residuals’ ?
6. What is an ‘Experimental Design’ ?
4. Watch Paul Allen’s Video about Variation and how it causes poor quality.
https://youtu.be/U2-2NxGpniU
Answer this Question :
In what sort of areas does variation increase the COST of POOR QUALITY in your processes ? Give 3 more examples of cost increases because we have too much variability ( I have given you the first answer ) ..
- MORE STOCK / INVENTORY IS NEEDED WHEN YOU HAVE HIGH VARIATION IN YOUR PROCESSES