A certain brand of refrigerators has a length of life that is normally distributed with a mean
Question:
a. What is the probability a refrigerator will last less than 6.5 years?
b. What is the probability that a refrigerator will last more than 23 years?
c. What length of life should the retailer advertise for these refrigerators so that only 3% of the refrigerators fail before the advertised length of life?
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Related Book For
Essentials Of Business Statistics Communicating With Numbers
ISBN: 9780078020544
1st Edition
Authors: Sanjiv Jaggia, Alison Kelly
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