The Average Life Expectancy of Computers Produced by Ahmadi, Inc

question 28

Essay

The average life expectancy of computers produced by Ahmadi, Inc. is 6 years with a standard deviation of 10 months. Assume that the lives of computers are normally distributed. Suggestion: For this problem, convert ALL of the units to months.
a.What is the probability that a randomly selected computer will have a life expectancy of at least 7 years?
b.Computers that fail in less than 5years will be replaced free of charge. What percentage of computers are expected to be replaced free of charge?
c.What are the minimum and the maximum life expectancy of the middle 95% of the computers' lives? Give your answers in months and do not round your answers.
d.The company is expecting that only 104 of this year's production will fail in less than 3 years and 8 months. How many computers were produced this year?

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Definitions:

Difficult Temperament

A behavioral profile characterized by high reactivity and difficulty adapting to changes or regulating emotions.

Slow-To-Warm-Up

A temperament trait describing individuals who are typically cautious and less engaging in new situations but gradually become more comfortable with exposure.

Phobic Disorder

A type of anxiety disorder characterized by an extreme, irrational fear of specific situations, objects, or activities, leading to avoidance behaviors.

Realistic Danger

A situation or condition that poses a genuine threat to a person's safety or well-being, requiring appropriate caution or action.