Question 12.5 pts

Type in your answers. Please be as specific as possible and state your reasoning how you obtained the values.

In order to determine the effect of school size on subsequent academic performance, 20 graduating seniors who had gone on to college were chosen from each of four high schools that had graduating classes of 50, 250, 500, and 2000. Mean college grade points were calculated for each high school, awas set at .05, and an ANOVA was run, producing an F = 2.75.

1. What is the independent variable and dependent variable?

2. Ntot =

3. K =

4. What is the critical value?

5. What conclusion can you draw from the results?