The mean charge for electricity for a sample of households was $110.00 per month, with a standard
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The mean charge for electricity for a sample of households was $110.00 per month, with a standard deviation of $17.50 per month. Between what two values do 95% of the data lie? (Assume the data set has a bell-shaped distribution.)
Use the Empirical Rule.
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Related Book For
Elementary Statistics Picturing The World
ISBN: 9780134683416
7th Edition
Authors: Ron Larson, Betsy Farber
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