Consumers spend an average of $13.80 on a meal at a restaurant in 2012. (Data extracted from
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Consumers spend an average of $13.80 on a meal at a restaurant in 2012. (Data extracted from www.alixpartners.com.)
Assume that the amount spent on a restaurant meal is normally distributed and that the standard deviation is $2.
a. What is the probability that a randomly selected person spent more than $15?
b. What is the probability that a randomly selected person spent between $10 and $12?
c. Between what two values will the middle 95% of the amounts spent fall?
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Related Book For
Basic Business Statistics
ISBN: 9780321870025
13th Edition
Authors: Mark L. Berenson, David M. Levine, Kathryn A. Szabat
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