The Degrees of Freedom for the Independent Groups T Test

question 73

Multiple Choice

The degrees of freedom for the independent groups t test are equal to:

• A)n₁ - n₂ + 2
• B)n₁ + n₂ - 2
• C)n₁ - n₂ - 2
• D)n₁ + n₂ + 2

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Definitions:

Overhead

The total cost of running a business that cannot be directly attributed to the production of goods or services, similar to factory overhead but can apply to non-manufacturing costs.

Overhead Allocation Base

A measure or activity, such as direct labor hours or machine hours, used to assign overhead costs to products or services.

Direct Labor Hours

The total hours worked directly on a product or service by employees in the production process.

Overhead Rate

A measure used to allocate overhead costs to produced goods, calculated by dividing total overheads by an allocation base, such as labor hours.