A Researcher Wants to Determine the Efficacy of a Training

question 88

Multiple Choice

A researcher wants to determine the efficacy of a training program directed at improving concentration, focus, and memory on college students.She selects a random sample of 16 individuals and has them take an initial assessment test before the training program.Then the individuals complete the training program, and at the end they take a final test that's comparable to the initial test.The results are shown in the following table: $$\begin{array} { | c | c | c | } \hline \text { Individ. } & \text { Before } & \text { After } \\\hline 1 & 79 & 81 \\\hline 2 & 74 & 73 \\\hline 3 & 81 & 82.5 \\\hline 4 & 75 & 82.5 \\\hline 5 & 72.5 & 85 \\\hline 6 & 75 & 90 \\\hline 7 & 67.5 & 83.5 \\\hline 8 & 57.5 & 72.5 \\\hline 9 & 62.5 & 87.5 \\\hline 10 & 77.5 & 80 \\\hline 11 & 61.5 & 92.5 \\\hline 12 & 57.5 & 80 \\\hline 13 & 61.5 & 71 \\\hline 14 & 72.5 & 84 \\\hline 15 & 64 & 78.5 \\\hline 16 & 71 & 97.5 \\\hline\end{array}$$ The analyst uses a Wilcoxon matched-pairs signed rank test with a 0.05 significance level.The value of $\mu$ _T is ______.

• A)68
• B)69
• C)70
• D)71
• E)72

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Definitions:

Allocation Base

A criterion or measure used for allocating costs to cost objects, based on factors such as time, output, or activity level.

Job-Order Costing

An accounting method that tracks costs individually for each job, suitable for manufacturing jobs that are distinct and not identical.

Indirect Labor

Labor costs associated with support work that cannot be directly linked to the production of goods or services, such as maintenance and supervision.

Manufacturing Overhead

All indirect costs associated with the manufacturing process, excluding direct materials and direct labor costs.