If We Know That the Length of Time It Takes

question 155

Multiple Choice

If we know that the length of time it takes a college student to find a parking spot in the library parking lot follows a normal distribution with a mean of 3.5 minutes and a standard deviation of 1 minute, find the point in the distribution in which 75.8% of the college students exceed when trying to find a parking spot in the library parking lot.

• A) 2.8 minutes
• B) 3.2 minutes
• C) 3.4 minutes
• D) 4.2 minutes

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Definitions:

Variance Accounted

A measure of the proportion of the total variance in a dataset that is explained or accounted for by a statistical model or factor.

Correlation

A numerical indicator that reveals the degree to which two factors vary in tandem, showcasing the intensity and orientation of their association.

Correlation Coefficient

A measure that indicates the extent to which two variables change together, but not necessarily at the same rate.

Test Statistic

A quantity derived from sample data that is used in a hypothesis test to determine whether to reject the null hypothesis.