Business Statistics In Practice, 3rd Canadian Edition By Bruce – Test Bank

Test Bank For Business Statistics In Observe, 3rd Canadian Edition By Bruce

• ISBN-10 ‏ : ‎ 0071339604
• ISBN-13 ‏ : ‎ 978-0071339605

c11 Key

1. The dependent variable is the variable that’s being described, predicted, or managed.
TRUE

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Bowerman – Chapter 11 #1
Problem: Medium
Studying Goal: 11-02 Calculate the correlation coefficient statistic

2. The error time period in a easy linear regression mannequin is the distinction between a person worth of the dependent variable and the corresponding imply worth of the dependent variable.
FALSE

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Bowerman – Chapter 11 #2
Problem: Medium
Studying Goal: 11-04 Outline what is supposed by easy linear regression

3. A easy linear regression mannequin is an equation that describes the straight-line relationship between a dependent variable and an impartial variable.
TRUE

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Bowerman – Chapter 11 #3
Problem: Medium
Studying Goal: 11-04 Outline what is supposed by easy linear regression

4. The residual is the distinction between the noticed worth of the dependent variable and the expected worth of the dependent variable.
TRUE

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Bowerman – Chapter 11 #4
Problem: Medium
Studying Goal: 11-06 Clarify the which means of every time period within the linear regression equation

5. The experimental area is the vary of the beforehand noticed values of the dependent variable.
FALSE

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Bowerman – Chapter 11 #5
Problem: Medium
Studying Goal: 11-06 Clarify the which means of every time period within the linear regression equation

6. The coefficient of willpower is the proportion of whole variation defined by the regression line.
TRUE

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Bowerman – Chapter 11 #6
Problem: Medium
Studying Goal: 11-03 Clarify the ensuing worth of computing r2 (eta2) from a correlation

7. When utilizing easy regression evaluation, if there’s a robust constructive correlation between the impartial and dependent variable, then we will conclude that a rise within the worth of the impartial variable causes a rise within the worth of the dependent variable.
FALSE

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Bowerman – Chapter 11 #7
Problem: Laborious
Studying Goal: 11-01 Describe the 2 properties of the correlation coefficient statistic

8. When there may be constructive autocorrelation, over time, damaging error phrases are adopted by constructive error phrases and constructive error phrases are adopted by damaging error phrases.
FALSE

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Bowerman – Chapter 11 #8
Problem: Medium
Studying Goal: 11-05 Record the assumptions behind linear regression

9. In easy regression evaluation, r2measures the proportion of the variation within the dependent variable defined by the easy linear regression mannequin.
TRUE

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Bowerman – Chapter 11 #9
Problem: Medium
Studying Goal: 11-03 Clarify the ensuing worth of computing r2 (eta2) from a correlation

10. In a easy linear regression mannequin, the coefficient of willpower signifies the energy and route of the connection between impartial and dependent variable.
FALSE

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Bowerman – Chapter 11 #10
Problem: Medium
Studying Goal: 11-03 Clarify the ensuing worth of computing r2 (eta2) from a correlation

11. In easy regression evaluation, the amount is known as the overall variation.
TRUE