Question

In: Statistics and Probability

This year several students complained that students in one section received much higher marks than those...

This year several students complained that students in one section received much higher marks than those in other sections of the same course. The Department chair recorded student grades across the sections in an effort to determine if there was a relationship between grades achieved an instructor. Can the chair infer that the grade achieved was independent of the instructor for each class at a 5% level of significance?

Instructor

PA

ML

OK

ST

total

Grade Achieved

A

8

14

9

4

35

B

13

8

11

10

42

C

10

4

6

12

32

D

6

5

5

10

26

F

3

3

5

4

15

Total

40

34

36

40

150

Solutions

Expert Solution

orchestra answered 2 years ago
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