Problem 5. Data were collected on the number of teaching strategies employed by Graduate Teaching Assistants. There were a total of 28 TAs who had received training on teaching strategies (9 in 2008, 9 in 2009, and 10 in 2010). Data from 2007 served as control since TA training program was not conducted prior to 2008. The data in the following table show the average number of teaching strategies used per week by each of the student teachers. 2007 (Control) 2008 2009 2010 6.88 7.28 10.85 7.29 5.40 10.50 7.43 14.38 6.00 8.43 6.71 6.00 9.80 8.63 7.60 5.00 7.63 8.63 9.71 5.38 5.00 7.00 9.57 14.14 11.13 8.71 9.25 7.25 5.86 5.71 10.38 7.20 7.35 10.75 a. Obtain the ANOVA table. b. Test the hypothesis that there are year-to-year differences in the number of teaching strategies employed, at o = 0.04. c. Use Dunnett's method to test whether there are differences between the number of teaching strategies used for the years with training against the control, at level 0.05