Calculate and plot the centerline

Reference no: EM131111118

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.

a. Calculate and plot the centerline and the upper and lower control limits for the p-chart.

b. Calculate and plot the A, B, and C zone boundaries on the p-chart.

c. Plot the sample proportions on the p-chart.

d. Is the process under control? Explain

e. Should the control limits and centerline of part a be used to monitor future process output? Explain

Reference no: EM131111118

Questions Cloud

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.

Encourage integration and globalization : Despite the great international move to encourage integration and globalization, some critics have argued that free trade poses a serious problems especially to the developing countries.

Calculate the proportion defective in each sample : To construct a p-chart for a manufacturing process, 25 samples of size 200 were drawn from the process. The number of defectives in each sample is listed below

Complete the table below to show the number of sub-atomic : Write the symbol for an atom of element X. Complete the table below to show the number of sub-atomic particles in both an atom and an ion of potassium. Which element is most likely to be in Group VI? Which element will form an ion of the type X2+. Wh..

Items generated by a manufacturing process : The proportion of defective items generated by a manufacturing process is believed to be 8%. In constructing a p-chart for the process, determine how large the sample size should be to avoid ending up with a negative lower control limit.

User Account

All Pages