- This was the original version of your quiz! If you can interpret the values in 2a-d correctly you should be ready to ace tomorrow's quiz!
- You will have to read a computer output tomorrow to determine the values of slope, intercept, and R^2.
- For #1 (this is not on your quiz tomorrow) you should check that both variables are quantitative and create a scatterplot to see if it's roughly linear
- I will not check this homework; this is your practice so that you can get an A tomorrow! 15 minute quiz to start class!
Here are the questions:
And here's the answer key so you can check your work:
- You didn't have question 3 on your homework but feel free to check it out if you're curious!
Tomorrow in class we'll start to get into our last main idea for this chapter--we have to learn lots about residuals...
- How do we calculate residuals?
- How do we graphically represent a residual?
- What does a +/- residual tell us?
- How do we create residual plots?
- How do we read residual plots? What do we use them for?
- How do we determine if a linear model is appropriate?
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