Researchers Studied the Role That the Age of Workers Has

question 38

Multiple Choice

Researchers studied the role that the age of workers has in determining the hours per month spent on personal tasks.A sample of 1,686 adults were observed for one month.The data are: $\begin{array}{ccc}&&\text { AGE GROUP }\\& \underline{18-24} & \underline{25-44} & \underline{45-64} \\\text { Mean }& 4.17 & 4.04 & 4.31 \\\text {Std Dev}&0.75 & 0.81 & 0.82 \\\text {N}&241 & 768 & 677\end{array}$
Construct a 93 percent confidence interval for the mean hours spent on personal tasks for 45-64 year olds.

• A) \(\left[ \begin{array} { l l }
• 4.26 & 4.36
• \end{array} \right]\)
• B) \(\left[ \begin{array} { l l }
• 4.25 & 4.37
• \end{array} \right]\)
• C) \(\left[ \begin{array} { l l }
• 4.27 & 4.35
• \end{array} \right]\)
• D) \(\left[ \begin{array} { l l }
• 4.28 & 4.34
• \end{array} \right]\)
• E) \([ 2.83\)\( \quad\)\( \quad\)\(5.79 ]\)

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Definitions:

Time-Driven Activity-Based Costing

A refinement of activity-based costing that assigns costs based on the duration activities require, leveraging time as the primary driver.

Customer Service Department

A division of a business dedicated to addressing customer inquiries, problems, and needs to ensure satisfaction.

Customer Cost Analysis

A process of examining the costs involved in serving a customer or customer segment, helping in making informed pricing or service strategies.

Time-Driven Activity-Based Costing

An accounting method that assigns costs to products or services based on the actual amount of time it takes to produce them, using time as the main driver for cost.