It is believed that there is a linear relationship between the scores of students in the final year in statistical theory and their scores in a prerequisite course.

Obtain the least square regression line that represents this relationship. Test for the significance of the parameters of the regression line. 

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Prerequisite 82 71 86 79 61 80 67 58 86 64 71 80 90 79 55 93 Statistical theory 76 77 88 76 68 81 68 61 89 71 66 76 91 77 59 94