Toby's Trucking Company determined that the distance traveled per truck per year is normally distributed, with a
Question:
a. What proportion of trucks can be expected to travel between 34 and 50 thousand miles in a year?
b. What percentage of trucks can be expected to travel either below 30 or above 60 thousand miles in a year?
c. How many miles will be traveled by at least 80% of the trucks?
d. What are your answers to (a) through (c) if the standard deviation is 10 thousand miles?
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Partial PHStat output Common Data Mean 50 Standard Deviation 12 Probability for a Ran...View the full answer
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Gabriela Rosalía Castro
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Related Book For 
Statistics For Managers Using Microsoft Excel
ISBN: 772
7th Edition
Authors: David M. Levine, David F. Stephan, Kathryn A. Szabat
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