Three different assembly methods have been proposed for a new product. A completely randomized Three different assembly methods have been proposed for a new product. A completely randomized experimental design was chosen to determine which assembly method results in the greatest number of parts produced per hour, and 30 workers were randomly selected and assigned to use one of the proposed methods. The number of units produced by each worker follows. Method A B C 97 93 99 73 100 94 93 93 87 100 55 66 73 77 59 91 91 75 100 85 84 86 73 72 92 90 88 95 83 86 Use these data and test to see whether the mean number of parts produced is the same with each method. Use a  .05.