Even without picking up your pencil you can probably determine at least one conclusion about the data in Exercise 17.13. What is that conclusion, and why is it of no interest?

Exercise 17.13

Run the analysis of variance on the data in Exercise 17.12 and draw the relevant conclusions.

Exercise 17.12

In Chapter 16 we had three different examples from a study by Spilich et al. (1992) in which we compared three groups on the basis of smoking behavior. We can set this design up as a 3 × 3 factorial by using Task as one variable and Smoking group as the other.

The dependent variable was the number of errors the participant made on that task.

These data are repeated on the next page.

Plot the cell means for this design.

Transcribed Image Text:

Pattern Recognition Recall Task Driving Simulation Non- Delay Active Smoke Smoke Non- Delay Active Non- Delay Active Smoke Smoke Smoke Smoke Smoke Smoke Smoke 9 12 8 7 12 10 20 14 888 27 48 34 15 7 34 29 65 2 0 9 19 34 55 2 6 4 7 8 10 || 9 16 16 17 19 -9469 20 6 33 14 0 56 18 42 5 12 7 35 63 54 0 17 23 9 21 16 37 54 44 14 8 5 4 28 61 9 10 6 30 71 38 17 4 8 9 22 4 60 75 15 10 12 42 8 6 18 7 8 10 16 10 49 2199 54 61 34 51 25 49 5+ 51 32 15 47 563553 3 9 5 3 16 5 13 || 320062064-00623