Fujiyama Electronics Case Study - Due Week 7

Fujiyama Electronics Case Study - Due Week 7
Objective | Project Deliverables | Grading Rubrics | Best Practices

Objective

This case study looks at the behavior of a circuit board process though the use of Control Charts. At least two Control Charts will need to be constructed, and from them you will asked to provide an assessment of you see. A template to facilitate the construction of the Control Charts has been provided.

Problem Statement
Fujiyama Electronics, Inc. has had difficulties with circuit boards purchased from an outside supplier. Unacceptable variability occurs between two drilled holes that are supposed to be ? apart on the circuit boards. 25 samples of 3 boards each were taken from shipments from the supplier as shown in the data from the worksheet. Data in the work sheet below can also be accessed here. 

Fujiyama Electronics

Observations
Sample 1 2 3

1 414 388 402
2 408 382 406
3 396 402 392
4 390 398 362
5 398 442 436
6 400 400 414
7 444 390 410
8 360 372 362
9 376 398 382
10 342 400 402
11 400 402 384
12 408 414 388
13 382 430 400
14 402 409 400
15 399 424 413
16 460 375 445
17 404 420 437
18 375 380 410
19 391 392 414
20 394 399 380
21 396 416 400
22 370 411 403
23 481 450 451
24 398 398 415
25 428 406 390

Project Deliverables

The student will submit the completed case study in word document paper by the end of class week 7 to their Dropbox. The paper is worth 50 points.
The student will complete and/or answer the following questions.
1. Calculate X-Bar-Bar, R-Bar, and associated control limits using the data in the table above.
2. Create X-BarR (Average & Range) Control Charts from the data in table above.
3. Discuss notable out-of-control conditions displayed in the completed X-BarR (Average & Range) Control Charts. Only consider points outside the Control Limits. Do not consider runs, set of points within certain zones, etc.
4. If the conditions you note could be defined as assignable conditions and they are removed from the process, what will happen to the X-BarR Control Chart?
(a) Remove the data related to the out-of-control points you observed from the origainal data and recalculate a new X-Bar-Bar, R-Bar, and associated control limits.
(b) Create new X-BarR (Average & Range) Control Charts from your updated data.
5. Discuss how the two sets of Control Charts are different. What has changed?
The format of the case study should conform to the Publication Manual for the American Psychological Association (APA), 6th edition, for title page & text. Citations and references are not required. A basic APA tutorial can be found in Webliography and paper template can be found in Doc Sharing. The completed case study will be submitted to your Dropbox as a MS-Word document. All graphics and charts will be a part of the Word document and submitted as a file. Documents authored in other applications such as WordPerfect or MS-Works will not be accepted.

Grading Rubrics

First Control Chart (40 Percent) Points Possible Points Earned Comments
All calculations are correct. 5
X-Bar & R charts are presented and correct. 5
All conditions of importance discussed. 10
Total 20
Second Control Chart (40 Percent) Points Possible Points Earned Comments
All calculations are correct. 5
X-Bar & R charts are presented and correct. 5
Differences between the two sets of Control Charts are thoroughly discussed. 10
Total 20
Mechanics (20 Percent) Points Possible Points Earned Comments:
The paper, including the title page follow APA guidelines for format. (References and citations not required) 2
Sentences are complete, clear, and concise. 2
The paper is laid out with effective use of headings, font styles, and white space. 2
Rules of grammar, usage, and punctuation are followed. 2
Spelling is correct. 2
Total 10
Total (100 Percent) Points Possible Points Earned Comments:
50 


Below is a excel template were i have graphed the problem
and example of a case.