The head of the department of management at State University has noticed that the four secretaries in
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a. Given the number of observations that were included in the work sampling study, how confident can the department head be that the sample result is within 3% of the actual proportion?
b. How many fewer or additional observations would be required for the department head to be 95% confident in the work sampling results?
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Operations Management Creating Value Along the Supply Chain
ISBN: 978-0470525906
7th Edition
Authors: Roberta S. Russell, Bernard W. Taylor
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