Researchers Have Studied the Role That the Age of Workers

question 118

Multiple Choice

Researchers have 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: $\begin{array} { l c c c } & & { \text { AGE GROUP } } \\& \underline { 18 - 24 } & \underline {25 - 44 }& \underline { 45 - 64 } \\\text { Mean } & 4.17 & 4.04 & 4.31\\\text { Std DeV } & 0.75 & 0.81 & 0.82 \\\text { N } & 241 & 768 & 677\end{array}$
Construct a 98 percent confidence interval for the mean hours spent on personal tasks for 25-44 year olds.

• A) \(\left[ \begin{array} { l l }
• 3.96 & 4.12
• \end{array} \right]\)
• B) \(\left[ \begin{array} { l l }
• 3.97 & 4.11
• \end{array} \right]\)
• C) \([ 3.98\)\( \quad\)\(4.10 ]\)
• D) \([ 2.16 \quad 5.92 ]\)
• E) \(\left[ \begin{array} { l l }
• 3.95 & 4.13
• \end{array} \right]\)

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Definitions:

Cash Cows

Business units or products that generate significant cash flows with little investment, typically in a mature stage of their lifecycle.

Market Share

The portion of a market controlled by a particular company or product, reflecting the company's competitiveness. Rephrased.

Complementary Pricing

A pricing strategy where products that complement each other are sold together at a price lower than the sum of their individual prices.