QUESTION
(a) Describe how the ABC method/technique of inventory control is based on Pareto analysis
(b) You are part of a team who is carrying out a study on the causes of inventory discrepancies in a Ministry. The team has collected the following information over a period of I2 weeks:
No of incidents
(a) Wrong recording of issues 6
(b) Wrong recording of receipts from suppliers 2
(c) Over issue of stock 26
(d) Under issue of stock 8
(e) Error in counting inventory on hand 4
(f) Pilferage 14
You are required to analyse the above information using Pareto analysis
(c) A study was conducted to determine the shrinkage rate of a material over time. 10 kg of the material was used for the test and measurements were taken over a period of 7 weeks. The results are shown below
Week Weight (kg)
1 9.7
2 8.1
3 7.4
4 5.9
5 5.1
6 4.2
7 3.3
You are required to analyse and comment on this information by using the appropriate quality tool.
(d) Data pertaining to the weight of an item has been collected over a period of 2 weeks as set out below;
Weight (kg) no of items
10 4
10.2 6
10.3 8
10.4 10
10.5 7
10.6 5
10.7 3
You are required to plot the data using a histogram and to comment thereon. .