Exam #2 Part 2 Solutions

0
October 22, 2013 at 6:04 pm  •  Posted in busad265 by  •  0 Comments

I worked through the 14 problems on the 2nd part of the exam using a calculator and pencil + paper.  I’ve scanned in my hand written solutions.

First, calculate ∑x, ∑y, ∑x², ∑y², ∑xy and produce a scatter plot.

Exam2_part2-1

Next, calculate the Pearson Correlation Coefficient, identify correlation type, dependent and independent variables, calculate slope and y-intercept of the regression line and produce a linear equation.

Exam2_part2-2

Finally, calculate the Sum of Squares Error (SSE), Standard Error of the Estimate, Coefficient of Determination (r²), estimate property values and discuss how multiple regression might be utilized.

Exam2_part2-3

Here is the formula sheet that was provided, for reference.

Ch12-Formulas

Leave a Reply