Assume the Mean Useful Life of a Particular Lightbulb Is

question 1

Multiple Choice

Assume the mean useful life of a particular lightbulb is 2,000 hours and is normally distributed with a standard deviation of 300 hours. Calculate the useful life of lightbulbs within two standard deviations of the mean.

• A) Between 1,700 and 2,300 hours
• B) Longer than 2,300 hours
• C) Longer than 1,700 hours
• D) Between 1,400 and 2,600 hours

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Definitions:

Safety Committee

A group within an organization responsible for promoting health and safety in the workplace, often by identifying risks and proposing measures to reduce them.

Safety Officer

An individual responsible for ensuring workplace safety, making sure all regulations and policies related to health and safety are followed.

Unsafe Work

Conditions or practices in the workplace that significantly increase the risk of injury, illness, or death to employees.

Limited Right

A specific legal entitlement or permission that is restricted by terms or conditions.