A large corporation sends many of its first-level managers to an off-site supervisory skills training course. Four different management development centres offer this course. The director of human resources would like to know whether there is a difference in the quality of training provided at the four centres. An independent random sample of five employees was chosen from each training centre. The employees were then ranked 1 to 20 in terms of supervisory skills. A rank of 1 was assigned to the employee with the best supervisory skills. The ranks are shown. Use α = 0.05 and test whether there is a significant difference in the quality of training provided by the four programs. ABCD 3 2 19 20 14 7 16 4 10 1 9 15 12 5 18 6 13 11 17 8
A large corporation sends many of its first-level managers to an off-site supervisory skills training course. Four different management development centres offer this course. The director of human resources would like to know whether there is a difference in the quality of training provided at the four centres. An independent random sample of five employees was chosen from each training centre. The employees were then ranked 1 to 20 in terms of supervisory skills. A rank of 1 was assigned to the employee with the best supervisory skills. The ranks are shown. Use α = 0.05 and test whether there is a significant difference in the quality of training provided by the four programs.
ABCD
3 2 19 20 14 7 16 4 10 1 9 15 12 5 18 6 13 11 17 8
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