Exhibit 17

question 43

Essay

Exhibit 17.8.A realtor wants to predict and compare the prices of homes in three neighboring locations.She considers the following linear models:
Model A: Price = β₀ + β₁Size + β₂Age + ε,
Model B: Price = β₀ + β₁Size + β₂Loc1 + β₃Loc2 + ε,
Model C: Price = β₀ + β₁Size + β₂Age + β₃Loc1 + β₄Loc2 + ε,
where,
Price = the price of a home (in $thousands),
Size = the square footage (in square feet),
Loc1 = a dummy variable taking on 1 for Location 1,and 0 otherwise,
Loc2 = a dummy variable taking on 1 for Location 2,and 0 otherwise.
After collecting data on 52 sales and applying regression,her findings were summarized in the following table.

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Definitions:

Operating Expenses

These are costs associated with the day-to-day operations of a business, excluding cost of goods sold, and may include rent, utilities, and salaries.

Departmental Expenses

Costs that are directly incurred by a specific department within an organization.

Indirect Expenses

Expenses incurred that are not directly tied to a specific product or service but are necessary for running the business, such as utilities or rent.

Budget Performance Report

A financial report comparing budgeted amounts to actual amounts for revenues, expenditures, and other financial elements over a period.