Question

Least Squares Regression Line Project

60 Points; 5 points each part. Due: Tuesday

Title

1. Draw the scatterplot
2. Describe all the features you see. (FODS)
3. Write the least squares regression line. (Define the variables.)
4. Interpret the slope in context.
5. Interpret the y-intercept in context.
6. Compute and interpret r.
7. Compute and interpret r2.
8. Draw the residual plot.
9. What is the largest residual? Discuss anything unusual about it.

Answer 1

10. Identify and discuss any outliers or influential points.
11. Discuss how good the LSRL fits/describes this data.
12. Predict when x = ___.
Is the prediction reliable? Why or why not?

Answer 2

here's the data file she provided us with, along with the plot excel gives

Answer 3

the actual excel file as well

if anyone's up I kind of need this before 8am

Answer 4

we've never done a scatterplot with more than three variables and she didn't specifically say we had to and that's what threw me off, she said to do just one scatterplot in the instructions however

Answer 5

also what does FODS mean???

Answer 6

When working with statistics, it's important to know the nature of your data, so that you can interpret in context.
Do you have any additional information apart from the names of variables?