Videos on Assumptions of Classical Linear Regression Model:
Video 1: Assumptions of Classical Linear Regression Model (Part 1)
https://youtu.be/uhgB3imNo8Q
Video 2: Assumptions of Classical Linear Regression Model (Part 2)
https://youtu.be/SxaXz9HZkPg
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Question Solved in this video:
i. State the assumptions of Classical Linear Regression Model.
ii. Using data on sales of cameras (SALES) and its price (PRICE in the thousands of rupees) for 17 brands, the effect of price on sales is given by:
Sales = A + B Price + ui
This is tested using OLS method. The results obtained are as follows. Assume that all the assumptions of classical linear regression model hold good.
Sales = 112.85 - 2.375 Price
t values (3.43) (-3.06)
R squared = 0.6452
a) Interpret the slope coefficient
b) Construct a 95% confidence interval for the slope coefficient
c) Interpret R squared
0:00 Introduction to Question 2 (Econometrics 2016 Exam)
0:03 Part (a) Question
0:11 Solution to part (a) Question
0:33 Part (b) Question
1:07 Solution to part (b) Question
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