Comment on control of short-term process variation

Reference no: EM131048448

A cutting operation. A machine tool in your plant is cutting an outside diameter. A sample of 4 pieces is taken near the end of each hour of production. Table 27.7

gives and s for the first 21 samples, coded in units of 0.0001 inch from the center of the specifications. The specifications allow a range of 0.0002 inch about the center (a range of -2 to 2 as coded).

(a) Make an s chart based on past data and comment on control of short-term process variation.

(b) Because the data are coded about the center of the specs, we have a given target µ= 0 (as coded) for the process mean. Make an chart and comment on control of long-term process variation. What special x-type cause probably explains the lack of control of ?

Reference no: EM131048448

Questions Cloud

Better prevention of poor quality : Better prevention of poor quality - Production volume and seasonal influences affect quality costs.

Write an essay to address your findings and recommendations : Write an essay to address your findings and recommendations, and provide applicable references as needed. This project should be at least three pages in length, and it should be created using APA style guidelines.

Develop a logical and congruent research proposal : Take any research question regarding nursing field or a situation of nurse patient in a hospital then conducted a study for making research proposal

Write a report about the companys stock : Each student will choose a publically traded corporation on either the NYSE or NASDAQ and write a 5+ page report about the company's stock. Including, years in business, current performance, how it compares to the competition etc.

Comment on control of short-term process variation : A cutting operation. A machine tool in your plant is cutting an outside diameter. A sample of 4 pieces is taken near the end of each hour of production. Table 27.7

What is the firms accounts receivable turnover : What is the firm's accounts receivable turnover? What is the firm's accounts receivable period? What is the firm's accounts receivable balance at the beginning of April 2016?

Calculate balance of direct materials control account : Given this incomplete information, complete the template below and calculate the beginning balance of the Direct Materials Control account

How the purchase of the new machinery affects the cash flow : You are required to make the adjustment for the New Machinery and prepare brief notes for your manager. The notes should answer the following questions: Explain how the purchase of the New Machinery affects the Cash Flow, and clearly state the pro..

Center lines and limits calculated from these past data : Hospital losses. Table 27.6 gives data on the losses (in dollars) incurred by a hospital in treating major joint replacement (DRG 209) patients.13 The hospital has taken from its records a random sample of 8 such patients each month for 15 months.

User Account

All Pages