work measurement and design question

Question 2 a) Explain FOUR major benefits of conducting a METHOD study in a service industry when compared to a manufacturing industry. 18 marks) b) The data in table I below is an example of paint defects from one branch of an automotive assembly plant located in Michigan USA. Develop a: i. Simple Pareto chart using the data in table 1 below. 17 marks ii. Weighted Pareto chart using the data in table 1 below. 19 marks] c) What defects would be the highest and lease priorities respectively and why using the results in part b above? [6 marks Category Dirt in paint Sag Orange peel Thin paint Sealer under Scratch Off-colour Other Count 50 25 20 5 10 7 20 3 Weight 0.10 0.25 0.30 0.05 0.05 0.15 0.05 0.05 Table 1 I Total 20 martel