A Commuter Travels Many Miles to Work Each Morning

question 34

Multiple Choice

A commuter travels many miles to work each morning. She has timed this trip 5 times during the last month. The time (in minutes) required to make this trip was 44,39,41,35,and 41. What is the mean absolute deviation for this sample data?

• A) 0
• B) 12
• C) 3
• D) 2.4
• E) 1.2

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Definitions:

Test Statistic T

A value calculated from sample data used in hypothesis testing to determine whether to reject the null hypothesis.

Normally Distributed

Describes a distribution of data that follows the normal distribution pattern, characterized by a symmetrical bell-shaped curve.

Sample Sizes

The number of observations or units chosen from a population to analyze in a study.

Parametric Techniques

Methods in statistics that assume the sample data comes from a population that follows a probability distribution based on a fixed set of parameters.