Statistics For Business And Economics 8th Edition By Paul Newbold – Test Bank

3) Determine the least squares regression line.
A) = 0.46 – 3.57x
B) = 0.46 + 3.57x
C) = 3.57 + 0.46x
D) = 3.57 – 0.46x
Answer: C
Difficulty: Moderate
Topic: Overview of Linear Models
AACSB: Analytic Skills
Course LO: Identify the components of simple linear regression models and discuss their applications

4) Determine the slope of the least squares regression line.
A) 10.48
B) 18.05
C) 3.57
D) 0.46
Answer: D
Difficulty: Moderate
Topic: Overview of Linear Models
AACSB: Analytic Skills
Course LO: Identify the components of simple linear regression models and discuss their applications

5) The y-intercept of the least squares regression line is:
A) 10.48
B) 18.05
C) 3.57
D) 0.46
Answer: C
Difficulty: Moderate
Topic: Overview of Linear Models
AACSB: Analytic Skills
Course LO: Identify the components of simple linear regression models and discuss their applications

6) The value of the correlation coefficient is:
A) 0.633
B) 0.795
C) 1.266
D) -0.633
Answer: B
Difficulty: Moderate
Topic: Overview of Linear Models
AACSB: Analytic Skills
Course LO: Identify the components of simple linear regression models and discuss their applications

7) Compute the value of the coefficient of determination.
A) 3.47
B) 2.67
C) 0.80
D) 0.63
Answer: D
Difficulty: Moderate
Topic: The Explanatory Power of a Linear Regression Equation
AACSB: Analytic Skills
Course LO: Identify the components of simple linear regression models and discuss their applications

8) Calculate the value of SSE.
A) 18.05
B) 10.48
C) 28.53
D) 0.010
Answer: B
Difficulty: Moderate
Topic: The Explanatory Power of a Linear Regression Equation
AACSB: Analytic Skills
Course LO: Identify the components of simple linear regression models and discuss their applications

9) The value of SSR is:
A) 18.05
B) 10.48
C) 28.53
D) 0.010
Answer: A
Difficulty: Moderate
Topic: The Explanatory Power of a Linear Regression Equation
AACSB: Analytic Skills
Course LO: Identify the components of simple linear regression models and discuss their applications

10) Which of the following is the value of SST?
A) 18.05
B) 10.48
C) 28.53
D) 0.010
Answer: C
Difficulty: Moderate
Topic: The Explanatory Power of a Linear Regression Equation
AACSB: Analytic Skills
Course LO: Identify the components of simple linear regression models and discuss their applications

11) The value of the standard error of the slope coefficient is:
A) 1.34
B) 0.45
C) 0.13
D) 2.67
Answer: C
Difficulty: Moderate
Topic: Statistical Inference: Hypothesis Tests and Confidence Intervals
AACSB: Analytic Skills
Course LO: Identify the components of simple linear regression models and discuss their applications

12) Calculate the standard error of the estimate.
A) 1.22
B) 3.47
C) 2.67
D) 63.3
Answer: A
Difficulty: Moderate
Topic: Statistical Inference: Hypothesis Tests and Confidence Intervals
AACSB: Analytic Skills
Course LO: Identify the components of simple linear regression models and discuss their applications

13) Compute the value of the model error variance.
A) 18.05
B) 1.50
C) 10.48
D) 0.63
Answer: B
Difficulty: Moderate
Topic: The Explanatory Power of a Linear Regression Equation
AACSB: Analytic Skills
Course LO: Identify the components of simple linear regression models and discuss their applications