MGT3002 Week 3 Discussion

Test: Week 4: Knowledge Check Chapter 14 and 15

1. A measure of goodness of fit for the estimated regression equation is the _____.

a. sample size

b. multiple coefficient of determination

c. mean square due to regression

d. mean square due to error

2. You are given the following information about x and y.

X Independent Variable y

Dependent Variable

1 5

2 4

3 3

4 2

5 1

Refer to Exhibit 14-5. The sample correlation coefficient equals ______.

a. –.5

b. –1

c. 1

d. 0

3. In regression analysis, the independent variable is typically plotted on the _____.

a. y-axis of a scatter diagram

b. x-axis of a scatter diagram

c. x-axis of a histogram

d. y-axis of a histogram

4. The following information regarding a dependent variable (y) and an independent variable (x) is provided.

x y

2 4

1 3

4 4

3 6

5 8

SSE = 6

SST = 16

Refer to Exhibit 14-4. The least squares estimate of the slope is _____.

a. 1

b. 3

c. 4

d. 2

5. In a regression analysis, if r2 = 1, then _____.

a. SSE must be negative

b. SSE must also be equal to 1

c. SSE can be any positive value

d. SSE must be equal to 0