Question:

in last week's lab. we looked at a 200? study that was published investigating the effectiveness of three different homework methods {checking gures at various steps in the solution, a full solution and no solution) in students' learning outcomes, i.e. assisting students to learn the course material. This year, researchers wondered if the way the homework method was presented, in person or online. might also be a factor in the improvement in the grades {the difference in the post-test and puretest score]. Students were randomly assigned to a treatment groupr and the difference was found between their posttest and pretest score on the topic. At the 5% signicance level. can you conclude that Homework Method and Presentation Method interact in their effect on mean improvement score? Use the Minitab output posted on Moodle and follow the steps below to answer this question. Since the assumptions are met. which of the following conclusions is correct? Select o ne: 0 a. We can conclude'there is an interaction effect between Homework Method and Presentation Method on the mean improvement score, for this population model of students. 0 b. We can conclude that the Homework Method has no effect on the mean improvement score. after allowing for Presentation Method. for this population model of students. 0 c. We cannot conclude that Homework Method has an effect on the mean improvement score. after allowing for Presentation Method; for this population model of students. 0 d. We can conclude that the Homework Method has an effect on the mean improvement score, after allowing for Presentation Method, for this population model of students. At a 5% level of signicance. can we conclude that the mean improvement score differ based on the Presentation Method? Answer in conteijustifying your answer [but no need to state HolHa).