How much time to study is enough time? That's the question that was plaguing a history teacher (bet you thought I would use stats again). He decided to use the first month of the class to test this hypothesis by randomly assigning his lecture of 154 students into the following four groups: one hour of study for the week, two hours of study for the week, four hours of study for the week, and one group studied for eight hours that week. At the end of the month, the students have their first exam and the scores of the four groups are compared Test the hypothesis using an alpha of 0.05. Over the next series of questions, fill in the rest of the table: ANOVA - History exam scores Sum of Squares df Mean Square F Fcrit Decision Study time 214.0 Residuals 1637.0 What is the value for the dfb