2. The data set for this problem can be found through the Sage Materials in the Student Textbook Resource Access link, listed under Academic Resources. Using the data in Ch. 13 Data Set 2 and the IBM® SPSS® software, compute the F ratio for a compar

2.     The data set for this problem can be found through the Sage Materials in the Student Textbook Resource Access link, listed under Academic Resources. Using the data in Ch. 13 Data Set 2 and the IBM^® SPSS^® software, compute the F ratio for a comparison between the three levels representing the average amount of time that swimmers practice weekly (< 15, 15–25, and > 25 hours) with the outcome variable being their time for the 100-yard freestyle. Does practice time make a difference? Use the Options feature to obtain the means for the groups. Copy and paste the output from IBM^®SPSS^® into this worksheet.

Dataset 2.

3.     When would you use a factorial ANOVA rather than a simple ANOVA to test the significance of the difference between the averages of two or more groups?

4.     Create a drawing or plan for a 2 × 3 experimental design that would lend itself to a factorial ANOVA. Identify the independent and dependent variables.