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4. a) Minerva Motorcycle Co. uses kanbans to support its transmission assembly line. Determine the size of the Kanban needed for the mainshaft assembly and the number of kanbans needed based on the details provided. Set up cost: 20 Annual holding cost of mainshaft assembly: 250 per unit Daily production: 300 mainshafts Annual usage: 20,000 (50 weeks x 5 days X daily usage of 80 mainshafts) Lead time: 3 days Safety stock: 12 day's production b) The company have also decided to introduce Six Sigma into the company to improve their quality and reliability. The Six Sigma team have identified 4 possible projects. Using the information in the table below, decide which project they should do first explaining how you arrived at that decision. Factors Increased product life Reduces waste Improves reliability of the manufacturing process Length of time to breakeven on the project Improves quality of mainshaft assembly Increases options for the customer c) What other tools and criteria would you use to select a project? 4. a) Minerva Motorcycle Co. uses kanbans to support its transmission assembly line. Determine the size of the Kanban needed for the mainshaft assembly and the number of kanbans needed based on the details provided. Set up cost: 20 Annual holding cost of mainshaft assembly: 250 per unit Daily production: 300 mainshafts Annual usage: 20,000 (50 weeks x 5 days x daily usage of 80 mainshafts) Lead time: 3 days Safety stock: day's production b) The company have also decided to introduce Six Sigma into the company to improve their quality and reliability. The Six Sigma team have identified 4 possible projects. Using the information in the table below, decide which project they should do first explaining how you arrived at that decision." Factors Weight .15 Project 1 90 Project 3 90 Project 4 80 Project 2 80 75 85 .10 95 65 85 .30 80 95 85 Increased product life Reduces waste Improves reliability of the manufacturing process Length of time to breakeven on the project Improves quality of mainshaft assembly Increases options for the customer .15 60 80 90 70 .20 90 75 85 60 .10 75 80 85 75 . c) What other tools and criteria would you use to select a project? Wide