The Manager of the Service Department of a Local Car

question 42

Multiple Choice

The manager of the service department of a local car dealership has noted that the service times of a sample of 15 new automobiles has a standard deviation of 4 minutes. A 95% confidence interval estimate for the variance of service times for all their new automobiles is

• A)8.58 to 39.79
• B)4 to 16
• C)4 to 15
• D)1.64 to 1.96

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Definitions:

Defenselessness

The state or quality of being vulnerable or without protection against a threat or harm.

Bullied

The act of seeking harm, intimidation, or coercion toward an individual, often repeated and habitual.

High Self-Esteem

A positive assessment of one's own worth or value, often associated with confidence and a sense of competence.

Likelihood

The probability or chance that a particular event will occur, often used in the context of statistical analysis or risk assessment.