Question 3 Battery manufacturers compete on the basis of the amount of time their products last...
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Question 3 Battery manufacturers compete on the basis of the amount of time their products last in scientific calculators. A manufacturer of such batteries has observed that the lifespan for their batteries is normally distributed with an average of 650 hours and a standard deviation of 1500 minutes. i) ii) iii) What is the probability that the battery lasts between 600 and 630 hours? What is the probability that the battery lasts longer than 690 hours? What is the minimum lifespan for 90% of the batteries? Question 3 Battery manufacturers compete on the basis of the amount of time their products last in scientific calculators. A manufacturer of such batteries has observed that the lifespan for their batteries is normally distributed with an average of 650 hours and a standard deviation of 1500 minutes. i) ii) iii) What is the probability that the battery lasts between 600 and 630 hours? What is the probability that the battery lasts longer than 690 hours? What is the minimum lifespan for 90% of the batteries?
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Statistics for Management and Economics Abbreviated
ISBN: 978-1285869643
10th Edition
Authors: Gerald Keller
Posted Date:
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