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Author Question: The average life expectancy of dishwashers produced by a company is 6 years with a standard ... (Read 93 times)

krabuske

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on: Mar 25, 2023

The average life expectancy of dishwashers produced by a company is 6 years with a standard deviation of 8 months. Assume that the lives of dishwashers are normally distributed.

a.What is the probability that a randomly selected dishwasher will have a life expectancy of at least 7 years?
b.Dishwashers that fail operating in less than 4 years will be replaced free of charge. What percent of dishwashers are expected to be replaced free of charge?
c.What are the minimum and the maximum life expectancy of the middle 95% of the dishwashers' lives? Give your answer in months.
d.If 155 of this year's dishwasher production fail operating in less than 4 years and 4 months, how many dishwashers were produced this year?

Essentials of Statistics for Business and Economics ¦ Anderson, Sweeney, Williams, Camm, Cochran ¦ 7th Edition
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Marked as best answer by krabuske on Mar 25, 2023

butterfly17

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Reply #1 on: Mar 25, 2023
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
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krabuske

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Reply 2 on: Mar 25, 2023
Wow, this really help

emsimon14

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Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

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