Question
A potential buyer of light bulbs bought 50 bulbs of each of 2 brands. Upon testing the bulbs, he found that brand* A* has a
A potential buyer of light bulbs bought 50 bulbs of each of 2 brands. Upon testing the bulbs, he found that brand* A* has a mean life of 1282 hours with a standard deviation of 80 hours, whereas brand *B* had a life of 1208 hours with a standard deviation of 94 hours. Can the buyer be quite certain that the two brands do differ in quality?
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Topological Dimension And Dynamical Systems
Authors: Michel Coornaert
1st Edition
3319197940, 9783319197944
