A Regression Analysis Between Sales (In $1000) and Advertising (In

question 36

Multiple Choice

A regression analysis between sales (in $1000) and advertising (in $) resulted in the following least-squares line: = 80,000 + 5x. What does this imply?

• A) An increase of $1 in advertising is expected, on average, to result in an increase of $5 in sales.
• B) An increase of $5 in advertising is expected, on average, to result in an increase of $5000 in sales.
• C) An increase of $1 in advertising is expected, on average, to result in an increase of $5000 in sales.
• D) An increase of $1 in advertising is expected, on average, to result in an increase of $80,005 in sales.

---

Definitions:

Material

Any substance or matter used in manufacturing, construction, or composition of something else.

Stream Channel

The physical confine of a stream (rivulet) consisting of a bed and banks, which confines and directs water flow.

Linear Ridges

Long, narrow elevations of land often formed by tectonic activities such as the folding of the Earth's crust or by the solidification of magma.

Scarp

A steep slope or cliff, typically formed by erosion or faulting.