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In a certain state, a survey of 800 workers showed that 250 belonged to a union. a. Find the 95% confidence interval of proportion of

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In a certain state, a survey of 800 workers showed that 250 belonged to a union. a. Find the 95% confidence interval of proportion of all workers who belong to a union. What calculator command and inputs did you use? b. Complete the following sentence: With 95% confidence the proportion of all workers who belong to a union is between and

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