Tom Sharkey is the owner of Sharkey Chevy, Buick, GMC. At the start of the year, Tom instituted a customer opinion program to find ways to improve service. The day after the service is performed, Tom’s administrative assistant calls the customer to find out whether the service was performed satisfactorily and how the service might be improved. Listed on the next page is a summary of the complaints for the first six months. Develop a Pareto chart. What complaints would you suggest that Tom work on to improve the quality ofservice?
Answer to relevant QuestionsRefer to Exercise 7.a. On the basis of this initial experience, determine the control limits for the range. Plot the experience on a chart.b. Does there seem to be a time when there is too much variation in the temperature?Sam’s Supermarkets tests its checkout clerks by randomly examining the printout receipts for scanning errors. The following numbers are the number of errors on each receipt for October 27: 0, 1, 1, 0, 0, 1, 1, 0, 1, 1, 0. ...Lahey Motors specializes in selling cars to buyers with a poor credit history. Listed below is the number of cars that were repossessed from Lahey customers because they did not meet the payment obligations over each of the ...The production supervisor at Westburg Electric Inc. noted an increase in the number of electric motors rejected at the time of final inspection. Of the last 200 motors rejected, 80 of the defects were due to poor wiring, 60 ...The numbers of “near misses” recorded for the last 20 months at Lima International Airport are 3, 2, 3, 2, 2, 3, 5, 1, 2, 2, 4, 4, 2, 6, 3, 5, 2, 5, 1, and 3. Develop an appropriate control chart. Determine the mean ...
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