A college professor is interested in finding out if there is a relationship between the post-test scores of students in Algebra and Calculus when a technology-based method was used in solving. Use 5% level of significance. Data are given below in percentage. Student Algebra Calculus XY x2 y2 1 83 78 6474 6889 6084 2 80 83 6640 6400 6889 3 97 95 9215 9409 9025 4 95 97 9215 9025 9409 78 87 6786 6084 7569 89 87 7743 7921 7569 77 76 5852 5929 5776 5.

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