Determine the appropriate sample size, Operation Management

Determine the Appropriate Sample Size

The following work sampling data was collected from observing a retail assistant: 

Activity                                                           Number of observations

Attending to customers                                              60

Telephone enquiries                                                    150

Walking around                                                          40

Reading data                                                               30

Talking to manager                                                     40 

Talking to other workers                                             20 

Lunch/coffee/comfort breaks                                      50 

Dealing with customer complaints                              110 

                                                                                  Total 500

The figures mean that, say, over the course of a day, it is estimated that 22 per cent of the time was devoted to dealing with customer complaints. 

(a) Determine the limits of accuracy of the above calculation 

(b) If the accuracy needed was to be ±1 per cent, determine the appropriate sample size. 

(c) How would an operations manager use the data obtained from the exercise described?

Posted Date: 3/16/2013 5:14:55 AM | Location : United States







Related Discussions:- Determine the appropriate sample size, Assignment Help, Ask Question on Determine the appropriate sample size, Get Answer, Expert's Help, Determine the appropriate sample size Discussions

Write discussion on Determine the appropriate sample size
Your posts are moderated
Related Questions
How might formally written job requirements help you manage your work unit?

Which of the following charts is used to monitor the total number of defects per unit when a constant subgroup size is employed? s-chart c-chart p-chart u-chart


What are the legal and ethical ramifications for falsifying a resume?

1. In what ways has Samsung's multibusiness model changed overtime? Why did its top managers make these changes? 2. How is Samsung currently performing/ What kinds of changes is

You have been named human resource manager for a company that has 180 employees and no formal base pay system. What steps will you take to develope such a coordinated system?

Given this information: Expected demand during lead time = 300 units Standard deviation of lead time demand = 30 units Determine each of the following, assuming that lead time dema

Your management team has been retained by a senior manager who is concerned about the effectiveness of his managers and their leadership abilities. He would like you to develop a t

The project manager is normally directly accountable for the project result, schedule and budget.

Matthew Yachts, located in Montauk, Long Island, manufactured sailing yachts of all descriptions. The company had begun by building custom-designed yachts for a largely New York-ba