Determine the appropriate sample size, Operation Management

Assignment Help:

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?


Related Discussions:- Determine the appropriate sample size

Explain what is authentic leadership, What is authentic leadership? Why do ...

What is authentic leadership? Why do ethics and trust matter to leadership?

Explain work study as a management tool, Explain work study as a management...

Explain work study as a management tool. Work Study as a Management Tool: Work study checks the work done in an organization and this aims at finding the best and most effici

Why university refused to pay the card charges on the ground, Type your The...

Type your The University of North is the major state university. The University was preparing for its upcoming re-accreditation, so the University board set aside extra funds to ma

Characterize the long run equilibrium, 1) characterize the long run equilib...

1) characterize the long run equilibrium of a perfectly competitive industry in which average costs are U-shaped as output increases, under both restricted and free entry. b)Discus

Find probability distribution of single lot containing fault, A quality con...

A quality control unit in ball-bearing manufacturing company keeps record of error in terms of the number of faulty balls (W) per a lot. The size of standard lot is 8, and the prob

Factors that influence the role played by operations manager, 1. Having con...

1. Having considered the changes in agriculture and manufacturing sectors in the industrial era, speculate what might happen to the service sector in the post-industrial era. What

Explain charge of maintaining hospital supplies, Barbara Flynn is in charge...

Barbara Flynn is in charge of maintaining hospital supplies at General Hospital. During the past year, the mean lead time demand for bandage BX-5 was 60 (and was normally distribut

Explain purpose of processing a digital crime, PDAs, iPods, iPhones, iPads,...

PDAs, iPods, iPhones, iPads, most cell phones, and other data devices are miniature computer systems designed to be highly mobile. Describe how such devices could alter the typical

Explain what is the dpmo measure, 1) The following table lists all costs of...

1) The following table lists all costs of quality incurred by Sam's Surf Shop last year. What was Sam's appraisal cost for quality last year? Annual inspection costs $ 155,000

Write Your Message!

Captcha
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