The Experiment Is Run Once for Each Combination of Brand

question 156

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)This is a completely randomized design in one factor.
• B)The devices serve as blocks to account for the variability between the lengths of time batteries last in different devices.
• 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:

Worldview

A comprehensive perspective through which an individual interprets the world and interacts with it.

Individual Needs

The specific physiological, psychological, or social requirements necessary for an individual to achieve and maintain health and well-being.

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The requirements essential for a local population to maintain and improve its level of health, well-being, and quality of life.

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