construct a pareto chart

(b) You've recently been employed by DITstent, a manufacturer of cardiovascular stents. Your primary goal in the next three months is to reduce failure costs arising from internal failures on your line. The manufacturing process on your line involves four main distinct stages; wave forming, winding, cutting and laser welding. Following each of these four stages, all units are subjected to 100% visual inspection. At the internal manual inspection station, a certain number of units are rejected, and the types of defects recorded. Each month summarized reports of the inspection results are made available to you on the company's network by the Quality inspectors. In Table 1.0, you have already compiled the last four months data from the inspectors' reports. Counts (May '13) Counts (June 13) Counts (July 13) Counts (August 13) Defect Type Radials 291 249 249 319 Weld Cuts 173 184 177 184 33 53 42 43 Miswound Crown Defects 47 47 47 47 Misforms 12 25 14 22 Contamination 7 15 6 16 Weld Splutter 72 32 50 54 Misaligned 202 201 261 189 Table 1.0: Defect Counts by Defect Type (1) Using the total dataset available for the last four months, construct and fully label a pareto chart for defect counts. (5 marks) (iii) What are your key insights and recommendation from the analysis of this pareto chart? (2 marks) Is this type of pareto chart the most suitable chart type to prioritise the focus areas of your failure cost reduction programme at DITstent? Please support your answer with logical argument. (2 marks)