1.The nature and scope of econometrics2.the linear regression model3.the two-variable...

Question

1.The nature and scope of econometrics2.the linear regression model3.the two-variable model4.multiple regression:estimation and hypothesis testing.You will have 1 hour to do the exam i ll copy and send u the questions.

David · Accepted Answer

1. A linear regression model means a model 
linear in the variables. 
Answer True  
False 
 
 
 
 
 
 
 
1. Although the expected value of a random 
variable can be positive or negative, its 
variance is always positive. 
Answer True  
False 
 
 
 
 
 
 
Question 3  
1. The OLS estimators b1 and b2 each follow 
the normal distribution only if ui follows the 
normal distribution. 
Answer True  
False  
5 points  
Question 4  
1. When we say that an estimated regression 
coefficient is statistically significant, we 
mean that it is statistically different from 1. 
Answer True  
False  
5 points  
Question 5  
1. The way to determine whether a group of 
explanatory variables exerts significant 
influence on the dependent variable is to see 
if any of the explanatory variables has a 
significant t statistic; if not, they are 
statistically insignificant as a group.  
Answer True  
False  
5 points  
Question 6  
1. Assuming the following PRF, Yi = β1 + β2Xi 
+ ui, and n = 200, the result that E(b1) = β1 is 
important because (choose all that apply)  
Answer  
 
A.

1.The nature and scope of econometrics 2.the linear regression model 3.the two-variable model 4.multiple regression:estimation and hypothesis testing. You will have 1 hour to do the exam i ll copy and...

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