A Company Wants to Estimate the Time Its Trucks Take

question 18

Multiple Choice

A company wants to estimate the time its trucks take to drive from city A to city B.The standard deviation is known to be 12 minutes.What sample size is required so that the error does not exceed ±2 minutes,with 95 percent confidence?

• A)12 observations
• B)139 observations
• C)36 observations
• D)129 observations

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Definitions:

Spurious

Pertaining to a false relationship where two variables appear directly related but are actually connected through a third variable.

Causal

Pertaining to a cause-and-effect relationship, where one event (the cause) is understood to precipitate another event or condition (the effect).

Male-centeredness

A societal or cultural focus and preference towards male perspectives and needs.

Gender-blindness

The practice of not distinguishing people by gender, which can lead to ignoring the differences in needs and experiences between genders.