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Question Question 1.1. A company has been receiving complaints about the attitude of

25 May Question Question 1.1. A company has been receiving complaints about the attitude of

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Question

Question 1.1.A company has been receiving complaints about the attitude of some sales clerks. Over a 10-day period, the total number of complaints was 360. The company wishes to develop a control chart for the number of complaints. What would the upper control limit on the number of complaints per day be for a 3 sigma (99.7%) control chart?

(Points : 2.5)


36

42

54

None of the above
Question 2.2.A post office has a single line for customers waiting for the next available postal clerk. There are two postal clerks who work at the same rate. The arrival rate of customers follows a Poisson distribution, while the service time follows an exponential distribution. The average arrival rate is three per minute and the average service rate is two per minute for each of the two clerks. How long does the average person spend waiting for a clerk?

(Points : 2.5)

3.429 minutes


1.143 minutes

0.643 minute

None of the above
Question 3.3.Ac-chart would be appropriate to monitor the number of weld defects on the steel plates of a ship’s hull.(Points : 2.5)


Question 4.4.Both transportation and assignment problems are members of a category of LP techniques called ________.(Points : 2.5)

transshipment problems

Hungarian problems

source-destination problems

supply and demand problems

network flow problems
Question 5.5.Anx-bar chart would be appropriate to monitor the number of defects in a production lot.

(Points : 2.5)

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