A survey of 3000 randomly selected Minnesotans aged 65 and older revealed that, on average, they spent
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A survey of 3000 randomly selected Minnesotans aged 65 and older revealed that, on average, they spent $85 per month on prescription drugs, with a standard deviation of $50.35 per month. Construct a 99% confidence interval for the true mean amount spent per month.
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Related Book For 
Just The Essentials Of Elementary Statistics
ISBN: 9780495314875
10th Edition
Authors: Robert Johnson, Patricia Kuby
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