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Quiz



This activity contains 15 questions.

Question 1.
Regression analysis is used primarily for the purpose of:

 
End of Question 1


Question 2.
The simplest regression model is the __________ relationship.

 
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Question 3.
The formula for the simple linear regression model is:

 
End of Question 3


Question 4.
When predicting values of Y from a regression model for a particular range of X, one can _______________ the relevant range of the X values.

 
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Question 5.
The error sum of squares, SSE, represents:

 
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Question 6.
Which of the following statements is true?

 
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Question 7.
The requirement that the variation around the line of regression be constant for all values of X is called:

 
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Question 8.

In an attempt to promote their new fitness equipment, Vinny’s Health Club surveyed people to determine how many pounds overweight as a function of the number of hours they worked out each month. The data collected is below.

12m1q8_1.gif

Find the slope, b1 of the regression line.
 
End of Question 8


Question 9.

In an attempt to promote their new fitness equipment, Vinny’s Health Club surveyed people to determine how many pounds overweight as a function of the number of hours they worked out each month. The data collected is below.

12m1q8_1.gif

Find the regression sum of squares.
 
End of Question 9


Question 10.
The standard deviation of the line of regression is called the:

 
End of Question 10


Question 11.
Which of the following plots can be used to evaluate whether the normality assumption has been seriously violated?

 
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Question 12.
__________ analysis is used to evaluate the aptness of the regression model that has been fitted to the data.

 
End of Question 12


Question 13.
Which of the following is not a valid number for the coefficient of correlation?

 
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Question 14.
The formula for testing the existence of correlation is:

 
End of Question 14


Question 15.
The F statistic is equal to the regression mean square, MSR, divided by:

 
End of Question 15





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