No-fines concrete, made from a uniformly graded coarse eggregate and a cement-water paste, is beneficial in areas prone to excessive rainfall because of Its excellernt drainage properties. Thearticie "Pavemant Thicknass Dasign for No-FInes Cancrata Parking Lots,'t amployed a last squaras analysis in studying haw y - porcaity ('N) Is relatad to x - unit weight (pcf) in concretespecimens. Consider the fallowing representative data.* 98.9 101.0 102.5 102.9 105.3 107.1 108.5 110.7y 20.6 27.627.125.022.721.421.019.9* 111.9 112.3 113.5 113.7 114.9 115.2 120.217.318.015.916.613.213.410.7A USE SALTRelevant summary quentities are x; = 1638.6 r, = 299.3, x? = 179,526.04, xy, = 32,224.69, y = 6405.39. The accompanying data on x= current density (mA/cm') and y= rate of deposition (um/min) appeared in an articie. Do you agree with the claim by the article's author that "a linearrelationship was obtained from the tin-lead rate of deposition as a function of current density"?40 60 a0Y 0.09 1.10 1.06 2.0720Find the value of 2. (Round your answar to three decimal placas.)

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No-fines concrete, made from e uniformly graded coerse eggregate and a cement-water paste, is bznefical in arees prone to excess ve rainfell because of its excellent drainage properties. The article "Pavemant Thicknass Dasign for No-Fines Cancrata Paricing Lots,"t ampioyed a laast squaras aralysis in studying haw y- porosity () is related to x- unit weight (pcf) in concreta specimens. Conslder the following representative data. sa.9 101.0 102.5 102.9 105.3 107.1 108.5 110.7 20.s 27.6 27.1 25.0 22.7 21.4 21.D 19.0 * 111.9 112.3 113.5 113.7 114.9 115.2 120.2 17.3 10.0 15.9 16.6 13.2 13.4 10.7 A USE SALT Relevant summary cuentities ere , = 1638.6r, = 299.3. = 179,526.04, xy, = 32.224.89, = 6405.09.