Question
An independent consumer group published its finding that the lifetimes of electric bulbs manufactured by BIG Corporation are approximately normally distributed with a mean of
An independent consumer group published its finding that the lifetimes of electric bulbs manufactured by BIG Corporation are approximately normally distributed with a mean of 670 days and a variance of 14,400. BIG Corporation claims that the variance of its electric bulbs is less than 14,400.
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Bridging Algebra, Geometry, And Topology
Authors: Denis Ibadula, Willem Veys
1st Edition
3319091867, 9783319091860
