Question: Task 2 (Regression):
This task is based on a scatterplot of quiz and midterm scores from a previous semester which is similar to the one we have used in our class:

Using SPSS we can determine that the regression line is
MT = 37.6 + .714*QT4 and we also find that r=.548. For all questions, explain how you arrive at your solution.

a. Based on the regression coefficients, draw the regression (best fit) line. Hint: Determine two points on this line and plot these first. Print this assignment sheet, enter the line by hand, and submit with your otherwise printed homework submission
b. How much of the variance is explained by the regression line?
c. If a student had not done any of the quizzes (or got everything wrong), what would be his/her midterm score according to the regression line?
d. If a student had a quiz score of 80, what would be the predicted value for the midterm score?
e. Are there any cases in this scatterplot which have a big influence on the regression line, i.e., if just this case would be removed, the location of the regression line should change markedly?

Price: $2.99

Solution: The downloadable solution consists of 3 pages
Deliverable: Word Document