The owner of Touchdown Sports Bar wants to develop a time standard for the task of...
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The owner of Touchdown Sports Bar wants to develop a time standard for the task of mixing a specialty cocktail. In a preliminary study, he observed one of his bartenders perform this task seven times with an average of 90 seconds and a standard deviation of 5 seconds. How many observations should be made if he wants to be 95.44 percent confident that the maximum error in the observed time is 1 second? The owner of Touchdown Sports Bar wants to develop a time standard for the task of mixing a specialty cocktail. In a preliminary study, he observed one of his bartenders perform this task seven times with an average of 90 seconds and a standard deviation of 5 seconds. How many observations should be made if he wants to be 95.44 percent confident that the maximum error in the observed time is 1 second?
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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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