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 how does the market demand curve change, How does the market demand...

How does the market demand curve change (as a function of marketing expenditure) during recession? a. Shifts downward b. Remains unaffected c. Becomes ver

Define the investigation of the purchasing department, Q. Define the invest...

Q. Define the investigation of the purchasing department. Investigation of a purchasing department: It is the responsibilities of a purchasing department. a. Receiving material

Least cost methods, At any stage if there is a tie in the minimum cost so t...

At any stage if there is a tie in the minimum cost so that two or more routes have the same least cost of transportation then conceptually either of them may be selected. However a

Define the minimal long-term effect on the environment, Define the minimal ...

Define the minimal long-term effect on the environment. Practices for minimal continuing effect onto the environment: a. Reduction within the use of toxic substances. b.

Describe assaults a waitress at a nearby restaurant, A company hires a file...

A company hires a file clerk but does not inquire into his criminal history. In fact, he has had several convictions for driving while intoxicated. On a lunch break, he gets drunk

Green supply chain management, what is the meaning of green sipply ...

what is the meaning of green sipply chain managent and is it applied in production process

Explain the forecasted demand for fudge, The forecasted demand for fudge fo...

The forecasted demand for fudge for the next four months is 140, 160, 90 and 70 pounds. A) What is the recommended production rate if a level strategy is adopted with no back order

Explain some inherent challenges in using decision trees, What are some inh...

What are some inherent challenges in using decision trees effectively in today's organizations? How can these challenges be overcome?

Explain direct effects and indirect effects of goals, What is the differenc...

What is the difference between direct effects and indirect effects of Goals on choice of strategy?

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