The Flashlight Batteries Produced by One of the Northern Manufacturers

question 22

Essay

The flashlight batteries produced by one of the northern manufacturers are known to have an average life of 60 hours with a standard deviation of 4 hours. Use Chebyshev's theorem to answer the following questions.
a.At least what percentage of flashlights will have a life of 54 to 66 hours?
b.At least what percentage of the batteries will have a life of 52 to 68 hours?
c.Determine an interval for the lives of the batteries that will be true for at least 80% of the batteries. (Hint: First compute the Z-score.)

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Definitions:

Performance Appraisal

A regular review of an employee's job performance and overall contribution to a company.

Evaluation

The systematic assessment of the value, performance, or qualities of someone or something, typically for purposes of making decisions or improving effectiveness.

Line Managers

Managers who are directly responsible for overseeing the performance and operations of a specific department or area within an organization.

Performance Management Strategically

Strategically managing performance involves aligning individual employee goals and objectives with the strategic objectives of the organization to enhance productivity and contribute to the company's success.