A large corporation sends many of its first-level managers to an off-site supervisoryskills training course. Four different management development centers offer thiscourse. The director of human resources would like to know whether there is a differenceamong the quality of training provided at the four centers. An independent randomsample of five employees was chosen from each training center. The employees werethen ranked 1 to 20 in terms of supervisory skills. A rank of 1 was assigned to the employeewith the best supervisory skills. The ranks are shown. Use a .05 and testwhether there is a significant difference among the quality of training provided by thefour programs.CourseA B C D3 2 19 2014 7 16 410 1 9 1512 5 18 613 11 17 8
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