Quality management systems
Question Description
Please answer all questions Upload the complete anbook in Word Doc.
Note: You need to type all steps of calculations. Please use excel for calculation and avoid cut & paste from excel.
Q1–A product has three quality characteristics. The nominal values of these quality characteristics and their sample covariance matrix have been determined from the analysis of 30 preliminary samples of size n=10 as follows:. The sample means for each quality characteristic for 15 additional samples of size n=10 are show below. Is the process in statistical control? Please provide details.
Sample # |
Xbar1 |
Xbar2 |
Xbar3 |
1 |
3.1 |
3.7 |
3 |
2 |
3.3 |
3.9 |
3.1 |
3 |
2.6 |
3 |
2.4 |
4 |
2.8 |
3 |
2.5 |
5 |
3 |
3.3 |
2.8 |
6 |
4 |
4.6 |
3.5 |
7 |
3.8 |
4.2 |
3 |
8 |
3 |
3.3 |
2.7 |
9 |
2.4 |
3 |
2.2 |
10 |
2 |
2.6 |
1.8 |
11 |
3.2 |
3.9 |
3 |
12 |
3.7 |
4 |
3 |
13 |
4.1 |
4.7 |
3.2 |
14 |
3.8 |
4 |
2.9 |
15 |
3.2 |
3.6 |
2.8 |
Answer:
Q2 – The below table presents chemical process data. Using Engineering Process Control Chart in Module14 (Course Note), find the reset points and Construct the Control Charts.
Answer:
Q3 (Benchmarking Question)–Perform benchmarking for Company X and provide remedy options (Methodology, Tools, Techniques) to improve Company X performance?
Key Process Area |
Industry Average |
Company X |
Difference |
Remedy options |
Employee development |
450 |
260 |
||
Materials |
31,000 |
30,000 |
||
Warehousing |
975 |
3,000 |
||
Material control |
180 |
3,500 |
||
Materials preparation |
85 |
550 |
||
Production control |
725 |
3,800 |
||
Assembly |
10,000 |
11,100 |
||
Integration & test |
3,060 |
2,050 |
||
Incoming inspection |
75 |
275 |
||
In-process inspection |
200 |
500 |
||
Supplier auditing |
1,250 |
150 |
||
Internal auditing |
2,800 |
200 |
Answer:
Q4 (Process Capability Question)–A process is in statistical control with x(double bar) = 39.7 and R(bar) = 2.5. The control chart uses a sample size of n = 2. Specifications are at 40 +/- 5. The quality characteristic is normally distributed. Estimate the potential capability of the process and explain your conclusion.
Answer:
Q5 –Explain the shortcomings of control ellipse in Multivariate Monitoring Chart?
Answer:
Please answer all questions Upload the complete answers book in Word Doc.
Note: You need to type all steps of calculations. Please use excel for calculation and avoid cut & paste from excel.
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