A school guidance counselor investigates the influence of different motivational devices on the academic achievement of students. The counselor arranges for one group of students to receive immediate feedback upon the completion of an English assignment. A second group of students receives feedback at the end of the day, while a third group receives feedback at the end of the week. Using the students' grades on a standardized English test, determine whether there is a significant difference between the groups . If necessary, perform Scheffe tests. English Test Results for Groups of Students Receiving Various Types of Feedback Group 3 Group 1 Group 2 Week's End mmediate Feedback Day's End Feedback Feedback 49 40 36 40 37 32 41 42 31 46 39 47 40 50 30 1) Computations: Compute and have all the information you need to complete the six-steps statistical inference process: 2. Application: Do the application of the six-steps statistical inference process. 2.1) State the null hypothesis and the alternative hypothesis based on your research question. 2.2) Set the alpha level. 2.3) Calculate the value of the appropriate statistic. Also indicate the degrees of freedom for the statistical test if necessary. 2.4) Write the decision rule for rejecting the null hypothesis. 2.5) Write a summary statement based on the decision. 2.6) Write a statement of results