# QMB 2100-Robert Altoff is vice president for engineering

Robert Altoff is vice president for engineering for a manufacturer of household washing machines. As part of new product development, he wishes to determine the optimal length of time for the washing cycle. A part of the development is to study the relationship between the detergent used (four brands) and the length of the washing cycle (18, 20, 22, or 24 minutes). In order to run the experiment, 32 standard household laundry loads (having equal amounts of dirt and the same total weights) are randomly assigned to the 16 detergent-washing cycle combinations. The results (in pounds of dirt removed) are shown below.Cycle Time (min)Detergent Brand18202224A.12.12.21.19.11.11.17.18B.14.15.18.20.10.14.17.18C.16.15.18.19.17.14.19.21D.09.12.16.15.13.13.16.17a….plete an ANOVA table. Use the .05 significance level. (Round SS, MS, p to 3 decimal places and F to 2 decimal places. Leave no cells blank – be certain to enter “0” wherever required.) SourcedfSSMSFp Cycle Brand Interaction Error Total b-1.Find the cycle mean values. (Round your answers to 3 decimal places.) Cycle Mean 18 Min 20 Min 22 Min 24 Min b-2.Find the brand mean values. (Round your answers to 3 decimal places.)Brand MeanA B C D