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[Steps Shown] Union Membership. Nationwide 13.7% of employed wage and salary workers are union members (down from 20.1% in 1983). A random sample of 300

Question: Union Membership. Nationwide 13.7% of employed wage and salary workers are union members (down from 20.1% in 1983). A random sample of 300 local wage and salary workers showed that 50 belonged to a union. At a = 0.05, is there sufficient evidence to conclude that the proportion of union membership differs from 13.7%?

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