Calculate the Degrees of Freedom Associated with a Small-Sample Test $\left( \mu _ { 1 } - \mu _ { 2 } \right)$

question 57

Multiple Choice

Calculate the degrees of freedom associated with a small-sample test of hypothesis for $\left( \mu _ { 1 } - \mu _ { 2 } \right)$ , assuming $\sigma _ { 1 } ^ { 2 } \neq \sigma _ { 2 } 2$ and $n _ { 1 } = n _ { 2 } = 20$ .

• A) 33
• B) 30
• C) 31
• D) 15

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Definitions:

Predetermined Overhead Rate

A rate calculated before a period begins, used to allocate manufacturing overhead costs to products.

Machine-Hours

A measure of production time, referring to the total number of hours machines are operated during a specific period.

Manufacturing Overhead

All indirect costs associated with the production process, such as utilities, maintenance, and salaries for production managers.

Overapplied Overhead

An instance where the designated cost for manufacturing overhead surpasses the real overhead costs experienced.