The standard deviation of a sample of 15 automobile repairs at a local garage was $120.82. Assume
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The standard deviation of a sample of 15 automobile repairs at a local garage was $120.82. Assume the variable is normally distributed. Find the 90% confidence of the true variance and standard deviation.
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Related Book For
Elementary Statistics A Step By Step Approach
ISBN: 9781259755330
10th Edition
Authors: Allan G. Bluman
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