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Managing for Quality and Performance Excellence 9th Edition by James Evans,William Lindsay
Edition 9ISBN: 978-1285069463Managing for Quality and Performance Excellence 9th Edition by James Evans,William Lindsay
Edition 9ISBN: 978-1285069463 Exercise 31
The life of a Supercellular phone battery is normally distributed with a mean of 950 days and standard deviation of 40 days. Using the Excel functions (see Chapter 6), determine the following:
a. What fraction of batteries is expected to survive beyond 1010 days?
b. What fraction will survive fewer than 900 days?
c. Draw a chart of the reliability function using Excel.
d. What length of warranty is needed so that no more than 10 percent of the batteries will be expected to fail during the warranty period?
a. What fraction of batteries is expected to survive beyond 1010 days?
b. What fraction will survive fewer than 900 days?
c. Draw a chart of the reliability function using Excel.
d. What length of warranty is needed so that no more than 10 percent of the batteries will be expected to fail during the warranty period?
Explanation
Verified
Verified
a)The life of a phone battery follows a ...
Managing for Quality and Performance Excellence 9th Edition by James Evans,William Lindsay
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