Which Example Below Is Not a Random Assignment to Experimental

question 77

Multiple Choice

Which example below is not a random assignment to experimental groups?

• A) assign numbers to subjects, put corresponding numbers in a hat and pull out numbers, place the first subject in the experimental group and the second subject in the control group and continue until all numbers are used
• B) ask subjects whether they prefer to be in the experimental group or the control group then assign subjects based on their preference
• C) flip a coin assigning subjects getting a head to the control group and those getting a tail to the experimental group
• D) use a random number generator after assigning numbers to your subjects

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Definitions:

Cost Formula

An equation used to predict the total cost of production based on fixed costs and variable costs relative to the level of output or activity.

Spending Variance

Spending variance is the difference between the budgeted or standard cost of expenses and the actual amount spent, indicating whether costs were higher or lower than expected.

Manufacturing Overhead

All manufacturing costs except direct materials and direct labor, including costs related to operating the factory like rent, utilities, and equipment depreciation.

Activity Variance

The difference between planned activity levels and actual activity levels, used for budgeting and planning purposes.