Quiz Submissions - Test 1 - Form A
Attempt 1
Question 1
4 / 4 points
True or False: When an additional explanatory or independent variable is introduced into a multiple
regression model, the coefficient of multiple determination or R-square will always become significant.
True
False

Question
2
4 / 4
points
True of False: The Chancellor of a university has commissioned a team to collect data on students’ GPAs
and the amount of time they spend bar hopping every week (measured in minutes).
He wants to know if
imposing much tougher regulations on all campus bars to make it more difficult for students to spend time
in any campus bar will have a significant impact on general students' GPAs. A scatterplot will give him a
definite answer.

Question
3
0 / 4
points
True or False:
A multiple regression is called “multiple” because it has several independent variables.

Question
4
0 / 4
points
The variation attributable to the relationship between the independent variables and the explained variable
in a regression analysis is represented by

Question
4 / 4

5
points
True or False: The coefficient of determination represents the ratio of SSR to SST.
True
False

Question
6
4 / 4
points
The least squares method minimizes which of the following?

Question
7
4 / 4
points
The slope (
b
1
) represents
.
.

Question
8
4 / 4
points
The error represents the discrepancy between the observed dependent variable and its
_______ value.

Question
9
4 / 4
points
TABLE 14-3
An economist is interested to see how consumption for an economy (in $ billions) is influenced
by gross domestic product ($ billions) and aggregate price (consumer price index). The
Microsoft Excel output of this regression is partially reproduced below.