Produces micron chips for personal computers

Reference no: EM131111122

A manufacturer produces micron chips for personal computers. From past experience the production manager believes that 1 % of the chips are defective. The company collected a sample of the first 1,000 chips manufactured after 4:00 P.M. every other day for a month. The chips were analyzed for defects, then these data and MINITAB were used to construct the p-chart shown on page 691.

a. From a statistical perspective, is a sample size of 1,000 adequate for constructing the p-chart'! Explain

b. Calculate the chart's upper and lower control limits

c. What does the p-chart suggest about the presence of special causes during the time when the data were collected?

d. Critique the rational subgrouping strategy used by the disk manufacturer.

Reference no: EM131111122

Questions Cloud

Prepare a trial balance as of october of the current year : Prepare a trial balance as of October 31 of the current year. Prepare an Income Statement (don't forget the Earnings Per Share), Statement of Retained Earnings and a Classified Balance Sheet.

Depends on two commodities : Q1. Joan's utility depends on two commodities: her view of the sea and wine. Her utility function is:

Construct ap-chart for the tire production process : Good stone Tirc & Rubber Company is interested in monitoring the proportion of defective tires generated by the production process at its Akron, Ohio, production plant. The company's chief engineer believes that the proportion is about 7%.

Problematic in the larger context of globalization : How much power should labor have? And a quote from Adam Smith's: "Empowered labor is viewed as problematic in the larger context of globalization."

Produces micron chips for personal computers : A manufacturer produces micron chips for personal computers. From past experience the production manager believes that 1 % of the chips are defective. The company collected a sample of the first 1,000 chips manufactured after 4:00 P.M. every other..

Describe three of these characteristics : Post: Your Lecture Notes describe a trend among ‘contemporary organisations' towards widening the span of control, flattening the structure and forming collaborative and flexible teams. What are the characteristics of your company (or a company yo..

Discussion about stakeholders and potential winners : As the health care reform debate moves forward, there has been a lot of discussion about stakeholders and potential winners and losers. Prepare a PowerPoint presentation containing 10-15 slides in which you:

Are there differences between theory and practice : Write relevant recommendations for your observational study; for example, suggestions for change, and/or further development, for each of the above mentioned concepts.

Calculate and plot the centerline : To construct a p-chart, 20 samples of size 150 were drawn from a process The proportion of defective items found in each of the samples is listed in the next table.

User Account

All Pages