SOLUTION: to verify whether a course is research methodology improved performance, a similar test was given to 12 participants before and after the course. the original marks and after the c

Question 791178: to verify whether a course is research methodology improved performance, a similar test was given to 12 participants before and after the course. the original marks and after the course marks are given below:
original marks marks after the course
44 53
40 38
61 69
52 57
32 46
44 39
70 73
41 48
67 73
72 74
53 60
72 78
was the course useful? Consider these 12 participant as a sample from a population.

Answer by psbhowmick(878) (Show Source): You can put this solution on YOUR website!
Perform a linear simple regression analysis. Find the equation and then check if the population slope is positive or negative and base your conclusion on that.
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