2.
(a) According to the regression results in column (1), the house price is expected to increase by 21% (= 100% 0.00042 500 ) with an additional 500 square feet and other factors held constant. The 95% confidence interval for the percentage change is 100

Addressing Model Deviations:
Theoretical Considerations
By: Andrew Magyar
Stat 563
Injective Functions - I
Note that all the functions suggested for transforming variables are
strictly monotonic functions (or compositions of monotone functions)
on the do

Outliers
By Andrew Magyar
Stat 563
Outlier Detection
As mentioned earlier an outlier is any observation/s that look
unusual. These can be spotted a priori by constructing a scatter plot
of the response variable versus the explanatory variable.
Whether t

Robust Regression
By Andrew Magyar
Stat 563
The Objective Function
Recall the form of the objective function that is minimized to find the
least squares estimates
n
n
S 0 , 1 yi 0 1 xi ei2
i 1
2
i 1
The least squares estimates are the coefficient values

960:563 Regression Analysis: Assignment 1
Tingnan Lin
Department of Industrial and Systems Engineering
September 24, 2015
Question 1: Visualize the data
Make the scatter plot of the data:
600
400
200
-200
0
Velocity in km/sec
800
1000
Scatterplot of Dista