A study was carried out to investigate the relationship between the hardness of molded plastic (y, in Brinell units) and the amount of time elapsed since termination of the molding process (x, in hours). Summary quantities include n = 15, SSResid = 1235.470, and

SSTo = 25,321.368. Calculate and interpret the coef ficient of determination.

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Fitted Line Plot Percentage of operating costs 27.7 0.2011 number of employees 110 100 90 80 70 60 50 R-Sq R-Sq(adj) 24.1475 5.3% 0.1% 30 20 75 125 100 Number of employees 50 150