What Position in the Distribution Corresponds to a Z-Score of Z

question 1

Multiple Choice

What position in the distribution corresponds to a z-score of z = +2.00?

• A)above the mean by 2 points
• B)above the mean by a distance equal to 2 standard deviations
• C)below the mean by 2 points
• D)below the mean by a distance equal to 2 standard deviations

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Definitions:

Machine Hours

A measure of the time that a machine is operated during a specified period, used in calculating manufacturing costs.

Efficiency Variance

The difference between the actual and the standard amount of input (like labor or materials) needed to produce a certain amount of output, indicating the efficiency of resource use.

Variable Cost

Costs that change in proportion to the level of goods or services production, such as materials and direct labor.

Activity Range

Activity range refers to the span of levels of operational activity that a business can perform within, while maintaining efficiency and effectiveness in its processes or production.