Determine the fraction defective in each sample

Assignment Help Operation Management
Reference no: EM13921003

Using samples of 200 credit card statements, an auditor found the following:

a. Determine the fraction defective in each sample.
b. If the true fraction defective for this process is unknown, what is your estimate of it?
c. What is your estimate of the mean and standard deviation of the sampling distribution of fractions defective for samples of this size?
d. What control limits would give an alpha risk of .03 for this process?
e. What alpha risk would control limits of .047 and .003 provide?
f. Using control limits of .047 and .003, is the process in control?
g. Suppose that the long- term fraction defective of the process is known to be 2 percent. What are the values of the mean and standard deviation of the sampling distribution?
h. Construct a control chart for the process, assuming a fraction defective of 2 percent, using two- sigma control limits. Is the process incontrol?

Reference no: EM13921003

Questions Cloud

Three sigma limits, is the process incontrol : Given the following data for the number of defects per spool of cable, using three  sigma limits, is the process incontrol?
Unadjusted trial balance and adjusted trial balance : Which of the following best describes the difference between an unadjusted trial balance and an adjusted trial balance?
The postmaster of a small western town receives a certain : The postmaster of a small western town receives a certain number of complaints each day about mail delivery. Determine three  sigma control limits using the following data. Is the process incontrol?
Occasionally a test yields inconclusive results : Occasionally a test yields inconclusive results and must be repeated. Using the following sample data and n 200, determine the upper and lower control limits for the fraction of retests using two- sigma limits. Is the process incontrol?
Determine the fraction defective in each sample : Determine the fraction defective in each sample. If the true fraction defective for this process is unknown, what is your estimate of it?
Decide if the process is incontrol. : Determine upper and lower control limits for mean and range charts, and decide if the process is incontrol.
The time to replace vehicle wiper blades at a service : The time to replace vehicle wiper blades at a service center was monitored using a mean and a range chart. Six samples of n 20 observations were obtained and the sample means and ranges computed
Market value : The market value of Dylan Corporation's common stock had become excessively high. The stock was currently selling for $220 per share. To reduce the market price of the common stock, Dylan declared a 4-for-1 stock split for the 330,000 outstanding sha..
Determine upper and lower control limits : Determine upper and lower control limits that will include roughly 97 percent of the sample means when the process is in control.

Reviews

Write a Review

 

Operation Management Questions & Answers

  Utilizes decentralized financial planning

SITUATION: Given the SAME situation described in question #21, how might the strategic balance be changed by the entry of another company (Modern Processing Corporation) with a much larger management team than both Winfrey and Baxter and which utiliz..

  Regarding the taft-hartley act

Which of these statements is true regarding the Taft-Hartley Act? Which of the following has not been considered a mandatory subject for collective bargaining?  A union member who tried to take a local union out of one national union and affiliate it..

  Determination of order quantity

It is your responsibility, as the new head of the automotive section of Nichols Department Store, to ensure that reorder quantities for the various items have been correctly established.

  Directors affect the implementation of strategic goals

How do an organization's vision, mission, and values relate to its strategic plan. How does an active board of directors affect the implementation of strategic goals

  Developing strategies by copying competitors

Some companies operate without developing strategies by copying competitors' successful competitive decisions. Others insist on creating a clear strategy. The challenge of developing a clear, sustainable strategy depends on a reliable process, resear..

  How effective supply chain management contributes to success

how effective supply chain management contributes to the success in a company

  Formulate this problem as a tsp problem also then solve it

Formulate this problem as a TSP problem also then solve it using the branch also bound approach for TSP to Find out an optimal drilling order.

  Identify two key components of service system quality

Identify two key components of service system quality. Explain why these components are particularly important to service system quality (when compared to manufacturing system quality).

  What supply chain management refers to and how it might

500 words-all new content 2- referencesthe ceo asked you to have lunch with him and explain exactly how you in your

  Main premise of the program

Create aan APA style paper, comparing and contrasting any pair from among these formal quality improvement programs: Joseph Juran's Trilogy program, Edward Deming's Quality program, Six Sigma, and Philip Crosby's Quality is Free book. Your compare..

  A firm that has recently experienced enormous growth

A firm that has recently experienced enormous growth is seeking to lease a small plant in Memphis, TN; Biloxi, MS; or Birmingham, AL. Prepare an economic analysis of the three locations given the following information:

  How might the subsequent business specialists use learning

Explain how might the subsequent business specialists use learning curves: accountants, marketers, financial analysts, personnel managers, also computer programmers.

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd