Question

QUESTION 1

1. In a simple linear regression model, the intercept of the regression line measures

   	a.	the change in Y per unit change in X.
   	b.	the change in X per unit change in Y.
   	c.	the expected change in Y per unit change in X.
   	d.	the expected change in X per unit change in Y.
   	e.	the value of Y when X equals 0.
   	f.	the value of X when Y equals 0.
   	g.	the average value of Y when X equals 0.
   	h.	the average value of X when Y equals 0.

QUESTION 2

1. In a simple linear regression model, the slope of the regression line measures

   	a.	the change in Y per unit change in X.
   	b.	the change in X per unit change in Y.
   	c.	the expected change in Y per unit change in X.
   	d.	the expected change in X per unit change in Y.
   	e.	the value of Y when X equals 0.
   	f.	the value of X when Y equals 0.
   	g.	the average value of Y when X equals 0.
   	h.	the average value of X when Y equals 0.

QUESTION 3

1. The least-squares method is used to compute which of the following?
    
   

QUESTION 4

QUESTION 5

1. The Durbin-Watson statistic is used to diagnose violation of which of the following assumptions made for the regression model?

   	a.	Large sample size
   	b.	Large standard deviation of the error
   	c.	Homoskedasticity of the error
   	d.	Normality of the error
   	e.	Symmetry of the error
   	f.	Independence of the error
   	g.	Curvilinear relationship

QUESTION 6

1. If the residuals in a simple linear regression model are not correlated, the Durbin-Watson statistic should be close to what number?

   	a.	-1
   	b.	1
   	c.	2
   	d.	4

QUESTION 7

1. The following formula is used to construct the confidence interval estimate for which of the following parameter(s)?
   
   

Answer 1

Q1) g

Q2) c

Q3)

Q4)

Q5) g (Its a test for Auto-correlation)

Q6) c

Q7)

Options for 3,4,7 not opening. Kindly post it clearly in the comments and i will answer in the comments.

Answer 2

ANSWERS :

Q1.  e. The value of Y when X equals 0.

Q2. a. The change in Y per unit change in X.

Q3. Options are not available in the posted question.

However, least square method is used to compute the line of best fit to the scattered data.

Q4. Question is missing

Q5. c. Homoskedasticity

Q6. c. 2

Q7. Options are not given to choose.