(Ch12-prob set-Q9) please answer the 4 questions in the image below. Note: answer selections for (1) Tukey's honestly significant difference test/the scheffe test/ n2/ Cohens d (select correct answer) Note:answer selections for (3): 0/14.28/0.09/6,398.40Note: answer selections for (4): 14.28%/ 9%/ 6,398.40%/ or 0%.

G Styles Amit Almor, a psychology researcher at the University of South Carolina, conducted a series of experiments on conversation and attention level. He found that subjects were four times more distracted while preparing to speak or speaking than when they were listening. This research has implications for the issue of using cell phones while driving, as well as for many other areas. You decide to explore this issue by having three different groups try detecting visual shapes on a monitor. The first group is preparing to speak, the second group is speaking, and the third group is listening to a conversation. The sample mean and sum of squares of the scores for each of the three groups are presented in the following table. Group Sample Mean Sum of Squares Preparing to speak 93.4 28,948.5900 Speaking 102.1 26,303.3100 Listening 105.7 27,941.7600 After collecting the data, you analyze the data using an ANOVA. The results of your analysis are presented in the following ANOVA table. ANOVA Table Source of Variation SS df MS Between Treatments 7,998.00 2 3,999.00 14.28 Within Treatments 83,193.66 297 280.11 Total 91,191.66 299 These findings are significant at a = 0.05, which tells you that the difference is very unlikely to have occurred just by chance, but it does not tell you the size of the effect. A simple measure of the effect size is given by What is the formula for this measure of the effect size? SSbetween/SSwithin MS betwiwn/MS total O MS between/M-15 within O SSbetween/5Stotal Based on the data given, the effect size is 3 . (Round your answer to two decimal places) The percentage of variability in the scores accounted for by the effect due to treatments is