At the beginning of the semester, students were asked whether they felt confident with their abilities to get at least a B in the course. After the midterm exam, the same sample of students were asked...

Part A,B and C only

if needed then use r code

Extracted text: At the beginning of the semester, students were asked whether they felt confident with their abilities to get at least a B in the course. After the midterm exam, the same sample of students were asked they were confident in their abilities to get at least a B in the course. The data are presented in the table below. 7. Did students' perceptions of being able to get at least a B in the course change after taking the midterm? a. State your hypotheses. b. Display an appropriate numerical summary. c. What test is appropriate for testing this hypothesis? d. Assess whether the assumptions of this test are appropriate. e. Run the most appropriate test given the reasonableness of the assumptions. Present the test statistic and p-value. f. Interpret the results in the context of the problem. After Midterm Start Confident Not Confident Total Confident Not Confident 30 37 12 15 27 Total 42 22 64