Answer to Question #73738 in Statistics and Probability for Shinimi

Question #73738
The average life of a small motor is 10 years with a standard deviation of 2 years. The manufacturer replaces free all motors that fail while under guarantee. If the manufacturer is willing to replace only 3% of the motors that fail, how long a guarantee should he offer? Assume lifetimes are normally distributed.
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Expert's answer
2018-02-20T09:39:08-0500
The answer to the question is available in the PDF file https://www.assignmentexpert.com/https://www.assignmentexpert.com/homework-answers/mathematics-answer-73738.pdf

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Comments

Assignment Expert
15.12.20, 03:00

Dear rockimendo, please use the panel for submitting new questions.

rockimendo
13.12.20, 13:19

A random sample of eight cigarettes of a certain brand has average nicotine content of 4.2 milligrams and standard deviation of 1.4 milligrams. Is this in line with the manufacturer claim that the average nicotine content does not exceed 3.5 milligrams? Use 0.01 level of significance.

rockimendo
13.12.20, 13:17

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