One of the stores is a proud sponsor of the college soccer team. They constantly try to raise money for the team and they want to determine if there is any type of relationship between the amount of contribution and the years that the alumnus has been out of school. Note: the scatter plot might give you all the necessary information.
Years (X) 1 5 3 10 6 6 2 Contribution
(Y) 250 100 110 0 70 80 175
a. Using Excel construct a scatter plot. Discuss the output of the scatter plot.
b. Give (or calculate) the correlation coefficient.
c. Give (or calculate) the coefficient of determination.
d. Give (or calculate) the regression equation coefficients; Give the equation of regression.