Tires of a particular brand have a lifetime mean of 29,000 miles and a standard deviation of
Question:
a. It can be guaranteed that 75% of the lifetimes of tires of this brand will be in what interval?
b. Using the empirical rule, it can be estimated that approximately 95% of the lifetimes of tires of this brand will be in what interval?
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Related Book For
Statistics For Business And Economics
ISBN: 9780132745659
8th Edition
Authors: Paul Newbold, William Carlson, Betty Thorne
Question Posted:
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