The Experiment Is Run Once for Each Combination of Brand

question 14

Multiple Choice

The experiment is run once for each combination of brand of AAA batteries and device (TV remote, hand-held game, flashlight and digital camera) .The twelve runs are ordered
Randomly.The time (in minutes) that each battery lasts under continuous usage is recorded.
Which of the following statements is true about this design?

• A)The devices serve as blocks to account for the variability between the lengths of time batteries last in different devices.
• B)This is a completely randomized design in one factor.
• C)The interaction effect between brand of battery and type of device is significant.
• D)This is an observational study.
• E)This is a retrospective study.

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Definitions:

Income From Operations

The earnings generated from a company's regular business activities, excluding revenues and expenses from non-operational sources.

Residual Income

The amount of income that exceeds the minimum rate of return expected by a company or investor.

Performance Measure

Metrics or benchmarks used to gauge an individual's, department's, or organization's performance against expected results or goals.

Profit Margin

A financial ratio used to assess a company's profitability by dividing net income by revenue, demonstrating the percentage of revenue that constitutes profit.