11-6. A certain type of electronic measurement has a standard deviation of 9 units. How large of...
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11-6. A certain type of electronic measurement has a standard deviation of 9 units. How large of a sample should be taken so that the 95% confidence interval for the mean will not exceed 4 units in width?
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Related Book For 
Advanced Statistics From An Elementary Point Of View
ISBN: 9780120884940
1st Edition
Authors: Michael J Panik
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