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Mathematics, 06.03.2020 17:57 hammackkatelyn60
A company manufactures light bulbs. The lifetime for these bulbs is 4,000 hours with a standard deviation of 200 hrs. What lifetime should the company promote for these bulbs, whereby only 2% burnout before the claimed lifetime? (Hint: you may need to use norm. ppf() )
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A company manufactures light bulbs. The lifetime for these bulbs is 4,000 hours with a standard devi...
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