Question

The Goodman Tire and Rubber Company periodically tests its tires for tread wear under simulated road conditions. To study and control the manufacturing process, 20 samples, each containing three radial tires, were chosen from different shifts over several days of operation, with the following results. Assuming that these data were collected when the manufacturing process was believed to be operating in control, develop the R and x-bar charts.


$1.99
Sales4
Views48
Comments0
  • CreatedSeptember 20, 2015
  • Files Included
Post your question
5000