a) An inspector found an average of 3.9 scratches in the exterior paint of each of...

 

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a) An inspector found an average of 3.9 scratches in the exterior paint of each of the automobiles being prepared for shipment to dealers. Calculate two-sigma control limits for this case using a c chart approach. b) Before shipping lawn movers to dealers, an inspector attempts to start each mover and notes any that do not start on the first try. The lot size is 100 mowers, and an average of four did not start. Calculate two-sigma control limits for this case using a p- chart approach. a) An inspector found an average of 3.9 scratches in the exterior paint of each of the automobiles being prepared for shipment to dealers. Calculate two-sigma control limits for this case using a c chart approach. b) Before shipping lawn movers to dealers, an inspector attempts to start each mover and notes any that do not start on the first try. The lot size is 100 mowers, and an average of four did not start. Calculate two-sigma control limits for this case using a p- chart approach.

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Answer to question a The average number of scratches Cbar 39 Using 2 sigma control Limit Upper con... View the full answer