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The following table gives the opinion on collective bargaining by a random sample of 200 employees of a school system, belonging to a teachers' union.
Opinion on Collective Bargaining by Teachers' Union
For
Against
Undecided
Total
Staff
30
15
60
Faculty
50
10
40
100
Administration
25
5
Column totals
90
200
Test the hypotheses
H0 : Opinion on collective bargaining is independent of employee classi?cation versus
Ha : Opinion on collective bargaining is dependent on employee classi?cation using α = 0.05.
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