There are 300 welders employed at the Weller Shipyards Corporation. A sample of 30 welders revealed that
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There are 300 welders employed at the Weller Shipyards Corporation. A sample of 30 welders revealed that 18 had graduated from a registered welding course. Construct the 95% confidence interval for the proportion of all welders who graduated from a registered welding course.
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Related Book For 
Basic Statistics For Business & Economics
ISBN: 9781259268939
6th Canadian Edition
Authors: Douglas A. Lind, William G Marchal, Samuel A. Wathen, Carol Ann Waite
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