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 the plastic was molded (x, in hours). Summary quantities include n = 15, SSResid = 1,238.532, and SSTo = 24,979.704. Calculate and interpret the coefficient of determination. (Round the coefficient of determination to four decimal places when written as a decimal and 2 decimal places when written as a percent.) The coefficient of determination equals and tells us that % of the is attributable to the approximate relationship between time elapsed and hardness.

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Q: What is the observational unit?

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Q: Check here for instructional material to complete this problem. Evaluate E=z 92=0.9985. * A A P₁ 91…

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Q: 9. 4, = 27r A %3D (note: a = a) ans : A ' =Tr 2/3

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Numerical Integration

In a mathematical investigation, numerical integration comprises a wide group of calculations for computing the mathematical estimation of definite integral, and likewise, the term is moreover in some cases used to depict the numerical solution of differential equations. The most important aspect of this theory is error analysis.