Exhibit 13-6
Below You Are Given a Partial Computer Output

question 73

Multiple Choice

Exhibit 13-6
Below you are given a partial computer output based on a sample of 16 observations.
$\begin{array}{lcc} & \text { Coefficient } & \text { Standard Error } \\\text { Intercept } & 12.924&4.425\\\mathrm{X}_{1} & -3.682&2.63. \\\mathrm{X}_{2} &45.216&12.560\\\end{array}$
$\text { Analysis of Variance }$

$\begin{array}{lccc}\text { Source of } & \text { Degrees } &\text { Sum of } &\text { Mean }\\\text { Variation } & \text { of Freedom }&\text { Squares } & \text { Square }&F\\\text { Regression }&&4,853&2,426.5\\\text {Error }&&&485.3\end{array}$
-Refer to Exhibit 13-6. The degrees of freedom for the sum of squares explained by the regression SSR) are

• A) 2
• B) 3
• C) 13
• D) 15

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Definitions:

Permeable Units

Layers of earth materials, such as sand or gravel, that allow water to pass through easily.

Impermeable Units

Impermeable units refer to layers of rock or sediment that water cannot easily pass through, significantly affecting the flow of groundwater and the storage of hydrocarbons.

Salt Dome

A type of geological formation where a mass of salt has risen upward through the overlying rock, often creating traps for oil and gas.

Oil Field

An area underlain by one or more reservoirs containing oil that can be extracted, often associated with gas deposits.