If Z = 196,the Standard Deviation Is 3

question 16

Multiple Choice

If z = 1.96,the standard deviation is 3.5,and the error is plus or minus $0.25,what is the
Approximate sample size needed for this study?

• A)54
• B)215
• C)384
• D)753
• E)96

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Definitions:

Discretionary Fixed Costs

Discretionary fixed costs refer to fixed costs that can be altered in the short term by current managerial decisions, such as advertising or research and development expenses.

Management Decisions

These are choices made by the executives of a company affecting its direction and operation.

Planning Horizon

The future time period over which plans are made and resources are allocated.

High-Low Method

A method of separating a mixed cost into its fixed and variable elements by analyzing the change in cost between the high and low activity levels.