Jessica Salas, President of Salas Products, is reviewing the warranty policy for her company's new model of automobile batteries. Life tests performed on a sample of 100 batteries indicated: (1) an average life of 75 months, (2) a standard deviation of 5 months, and (3) a bell-shaped battery life distribution. What percentage of the batteries will fail within the first 65 months of use?
Jessica Salas, President of Salas Products, is reviewing the warranty policy for her company's new model of automobile batteries. Life tests performed on a sample of 100 batteries indicated: (1) an average life of 75 months, (2) a standard deviation of 5 months, and (3) a bell-shaped battery life distribution. What percentage of the batteries will fail within the first 65 months of use?
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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![Jessica Salas, President of Salas Products, is reviewing the
warranty policy for her company's new model of automobile
batteries. Life tests performed on a sample of 100 batteries
indicated: (1) an average life of 75 months, (2) a standard
deviation of 5 months, and (3) a bell-shaped battery life
distribution. What percentage of the batteries will fail within
the first 65 months of use?
5%
1%
0.5%
7.5%
2.5%](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F9979fba9-275a-461e-97a1-410682ecb785%2Fd5df5691-591a-4c13-a8ff-412472d31adc%2Fsh2r5yj_processed.png&w=3840&q=75)
Transcribed Image Text:Jessica Salas, President of Salas Products, is reviewing the
warranty policy for her company's new model of automobile
batteries. Life tests performed on a sample of 100 batteries
indicated: (1) an average life of 75 months, (2) a standard
deviation of 5 months, and (3) a bell-shaped battery life
distribution. What percentage of the batteries will fail within
the first 65 months of use?
5%
1%
0.5%
7.5%
2.5%
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