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

Test the hypotheses
H0: Opinion on collective bargaining is independent of employee classification versus
Ha: Opinion on collective bargaining is dependent on employee classification
using α = 0:05:

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Ags Undecided Total For Staff Faculty Administration Column totals 30 50 10 90 Against 15 10 25 50 15 40 5 60 60 100 40 200