A manufacturer of automobile transmissions uses three different processes. Management ordered a study of the production costs to see if there is a difference among the three processes. A summary of the findings is shown next.     Process 1 Process 2 Process 3 Total Process totals ($100s) 137 108 107 352 Sample size 10 10 10 30 Sum of squares 1,893 1,188 1,175 4,256 In an ANOVA table, what are the degrees of freedom for the error source of variation?   Multiple Choice   3   10   27   30

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