What Is the Formula Used to Calculate Degrees of Freedom

question 12

Multiple Choice

What is the formula used to calculate degrees of freedom for a t-test for dependent groups?

• A)n − 1
• B)n₁ + n₂ − 1
• C)n₁ − 1 + n₂
• D)n₁ + n₂

---

Definitions:

Machine-Hours

A measure of production time, representing the hours a machine is operated within a given period.

Direct Labor-Hours

A metric for quantifying the manual work done by employees on the production floor, correlating with the labor costs of manufacturing.

Plantwide Predetermined Rate

A single overhead rate calculated by dividing total estimated manufacturing overhead costs by the total estimated amount of allocation base, applied throughout the plant.

Machine-Hours

A measure of production time, representing the total hours that machines are operated in the manufacturing process.