Determine trial control limits for an x control chart

Assignment Help Basic Statistics

Reference no: EM13901941

The following are X and S values for 20 subgroups of size 5.

Subgroup	X	S	Subgroup	X	S	Subgroup	X	S
1	33.8	5.1	8	36.1	4.1	15	35.6	4.8
2	37.2	5.4	9	38.2	7.3	16	36.4	4.6
3	40.4	6.1	10	32.4	6.6	17	37.2	6.1
4	39.3	5.5	11	29.7	5.1	18	31.3	5.7
5	41.1	5.2	12	31.6	5.3	19	33.6	5.5
6	40.4	4.8	13	38.4	5.8	20	36.7	4.2
7	35.0	5.0	14	40.2	6.4

(a) Determine trial control limits for an X control chart.

(b) Determine trial control limits for an S-control chart.

(d) If your answer in part (c) is no, suggest values for upper and lower control limits to be used with succeeding subgroups.

(e) If each item is supposed to have a value within 35 ± 10, what is your estimate of the percentage of items that will fall within this specification?

Reference no: EM13901941

Questions Cloud

The following legal claims exist for huprey : The following legal claims exist for Huprey Co. Identify the accounting treatment for each claim as either

Segmentation for businesses that sell and market : This question is about segmentation for businesses that sell and market to other businesses. Briefly describe what NAICS codes are and their purpose. Briefly describe what NAPCS codes are and their purpose

An online clothes selling web site : An online clothes selling Web site has a low rate of customer retention's. Which of the following can help increase its customer retention?

What is primary purpose of creating work breakdown structure : One can trade-off time and cost when managing a project, but the project’s technical specifications must be maintained exactly as the client initially specifies. Nonnumeric project selection methods are only suitable if numeric methods are NOT availa..

Determine trial control limits for an x control chart : If each item is supposed to have a value within 35 ± 10, what is your estimate of the percentage of items that will fall within this specification?

Equitable remedies : Sam orally agrees to pay Lorena to plant and harvest a quarter of Sam’s farm acreage for four soybean seasons. After Lorena prepares the land and plants the first crop, Sam says that their deal is off. Can Lorena recover? Using what theory? Explain..

Compute the accrued interest payable on december : On November 7, 2013, Mura Company borrows $ 160,000 cash by signing a 90 day, 8% note payable with a face value of $ 160,000.

Threats from competitors and the macro environment : Complete the Assurance of Learning Exercise 3D on page 87 of the course textbook. In addition to completing Steps 1, 2, and 3, summarize your findings in a two-page APA formatted paper and discuss your views of McDonald's strategic prospects based up..

About the ability of the sarbanes-oxley acts ability : Colin Boyd expresses doubts about the ability of the Sarbanes-Oxley Act’s ability to prevent practices such as those which led up to the Enron scandal. What additional policies do you see that need to be enacted? How could those best be achieved? Are..

User Account

All Pages