operation Research

Question 2 Susan Sound predicts that students will learn most effectively with a constant background sound, as opposed to an unpredictable sound or no sound at all. She randomly divides twenty-four students into three groups of eight. All students study a passage of text for 30 minutes. Those in group I study with background sound at a constant volume in the background. Those in group 2 study with noise that changes volume periodically. Those in group 3 study with no sound at all. After studying, all students take a 10 point multiple choice test on the material. Their scores are as follows: GROUP TEST SCORES constant sound 7 4 6 8 6 6 2 9 random sound 5 5 3 4 4 7 2 2 no sound 2 4 7 1 2 15 5 a. Copy and complete the following ANOVA table for this problem. Source DF SS MS F Group Error Total b. What are the two (2) assumptions of an ANOVA? C. State the ANOVA hypotheses