Exhibit 12-8
the Following Information Regarding a Dependent Variable Y

question 97

Multiple Choice

Exhibit 12-8
The following information regarding a dependent variable Y and an independent variable X is provided
$$\begin{array} { l } \mathrm { n } = 4 \\\Sigma \mathrm { X } = 90 \\\Sigma \mathrm { Y } = 340 \\\Sigma \mathrm { Y } - { \bar { Y) } \mathrm { X } } - \bar { X } ) = - 156 \\\Sigma \mathrm { X } - \bar { X } ) ^ { 2 } = 234 \\\Sigma \mathrm { Y } - \bar { Y } ) ^ { 2 } = 1974 \\\mathrm { SSR } = 104\end{array}$$
-Refer to Exhibit 12-8. The coefficient of correlation is

• A) -0.2295
• B) 0.2295
• C) 0.0527
• D) -0.0572

---

Definitions:

Time Blocked

A scheduling strategy where specific periods are designated for certain tasks or activities to increase focus and productivity.

Work Station 1

A designated area or desk in a workplace where a single employee or a specific task is centered.

Exponentially Distributed

A type of probability distribution that describes the time between events in a Poisson process, where events occur continuously and independently at a constant average rate.

Processing Time

The duration required to complete a specific task or operation, often crucial in manufacturing and computer science contexts.