The Quality Control Manager at a Cell Phone Battery Factory

question 144

Multiple Choice

The quality control manager at a cell phone battery factory is interested in the mean life of a large shipment of batteries.Battery life is normally distributed with a standard deviation of 100 hours.A random sample of 64 batteries indicates a sample mean of 350 hours.The 99% confidence interval for mean battery life is _____.

• A)[317.8,382.2]
• B)[308.9,391.1]
• C)[311.4,362.5]
• D)[312.5,387.5]
• E)[320.9,379.1]

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Definitions:

ERG Theory

A theory proposed by Clayton Alderfer that categorizes human needs into three groups: Existence, Relatedness, and Growth, modifying Maslow's hierarchy of needs.

Maslow's Needs

A theory of psychological development outlined by Abraham Maslow that proposes a hierarchy of human needs, from basic physiological needs to self-actualization.

Human Motivation

The internal drive that propels individuals to take action, achieve goals, and satisfy needs and desires.

Need for Achievement

A psychological trait that drives individuals to pursue and attain challenging objectives.