A Time Series Design Used When an Intervention Has Occurred

question 25

Multiple Choice

A time series design used when an intervention has occurred during a short time period (e.g. one week out of ten observation periods spread out over ten weeks) is called a(n)

• A) pretest/posttest time series.
• B) interrupted time series.
• C) intervention time series.
• D) regression time series.

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Definitions:

Break-even Analysis

A financial calculation to determine the sales volume at which a business neither makes a profit nor a loss.

Cost-volume-profit Analysis

An accounting method used to determine how changes in costs and volume affect a company's operating income and net income.

Sales Mix

The proportion of different products or services that a business sells, significant because it can affect the company's overall profitability depending on the contribution margin of each item.

Unit Contribution Margin

The difference between the selling price per unit and the variable cost per unit. This metric indicates how much each unit sold contributes to fixed costs and profit.