Question

A major television manufacturer has determined that its 40 inch LED televisions have a mean service life that can be modeled by a normal distribution with a mean of six years and a standard deviation of one-half year. What is the probability of a lifetime between 5.78 and 6.35 years? If the manufacturer would not want more than 12% of the products to have failed by the end of the service contracts, how many years of warranty must they set on the service contract?

Name: a major television manufacturer has determined that its 40 inch led televisions have a mean service life that can be modeled by a normal distribution with a mean of six years and a standard 59405
Uploaded: 2023-05-11T21:29:26-08:00
Duration: 3 min 1 s
Channel: Joanna Quigley
Description: a major television manufacturer has determined that its 40 inch led televisions have a mean service life that can be modeled by a normal distribution with a mean of six years and a standard 59405

          A major television manufacturer has determined that its 40 inch LED televisions have a mean service life that can be modeled by a normal distribution with a mean of six years and a standard deviation of one-half year. 
What is the probability of a lifetime between 5.78 and 6.35 years?
If the manufacturer would not want more than 12% of the products to have failed by the end of the service contracts, how many years of warranty must they set on the service contract?

a major television manufacturer has determined that its 40 inch led televisions have a mean service life that can be modeled by a normal distribution with a mean of six years and a standard 59405

Added by Kyle H.

Elementary Statistics a Step by Step Approach

Allan G. Bluman 9th Edition

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Solved by Expert Joanna Quigley

05/11/2023

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78 and 6.35 years is 0.11%. The manufacturer Show more…

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A major television manufacturer has determined that its 40 inch LED televisions have a mean service life that can be modeled by a normal distribution with a mean of six years and a standard deviation of one-half year. What is the probability of a lifetime between 5.78 and 6.35 years? If the manufacturer would not want more than 12% of the products to have failed by the end of the service contracts, how many years of warranty must they set on the service contract?