In Order to Determine Whether or Not the Means of Two

question 8

Multiple Choice

In order to determine whether or not the means of two populations are equal,

• A) a t test must be performed.
• B) an analysis of variance must be performed.
• C) either a t test or an analysis of variance can be performed.
• D) a chi-square test can be performed.

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Definitions:

Least Squares Line

A straight line that minimizes the sum of the squared differences between observed values and the values predicted by the line.

Increase In Sales

A measure indicating the growth in revenue generated from goods sold or services provided over a specific period.

Least Squares Line

A line of best fit determined by minimizing the sum of the squares of the vertical deviations from each data point to the line.

Weight

A measurement of the importance or influence that a specific element has within a set of data or model.