Variation - Math Homework - I need in 12 hours Hw is attached
corybarrett1h
exam2.docSHORT ANSWER, FILL IN THE BLANK, TRUE/FALSE.
1. List the 4 major sources of variation.
2. Your heart has different pulse rates defending on what daily type activities you are involved in. Is that an example of random or assignable variation?
3. Once you have constructed your x-bar and r-charts, which one should you look at first and why?
4. What measure is common to each of the formulas for the x-bar and r-charts?
5. On an R-chart, the line for the lower control limit is dotted if the subgroup size is ___________ or
more.
6. What is used to estimate
s
3
±
in the formula for X-bar charts?7. What is the primary advantage and disadvantage of using the s-chart?
8. True or False. A process can be in control and not be within specifications.
9. True or False. If your x-bar and r-charts are out of control, your capability calculations are
unreliable.
10. True or False. The Cpk value can be greater than the Cp value if the process is not centered
between the Upper Spec Limit and the Lower Spec Limit.
