hw08_prob4_solution

hw08_prob4_solution - Avgs 10.00 25.55 140.00 151.35 25.55...

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Name(s) : Purdue Email Address(es): Section #: Assignment #: I/We have not used material obtained from any other unauthorized source, either modified or unmodified. Neither have I/we provided access to my/our work to another. The project I/we am/are submitting is my/our own original work. Input Section Calculations Section Output Section i predict y e^2 (y-avg(y))^2 1 0 55.50 0 0 51.60 15.17 896.73 2 2 44.70 4 89.4 46.39 2.87 366.55 3 4 38.00 16 152 41.18 10.14 154.89 4 6 34.70 36 208.2 35.97 1.62 83.64 5 8 30.60 64 244.8 30.76 0.03 25.46 6 10 27.20 100 272 25.55 2.71 2.71 7 12 22.00 144 264 20.34 2.74 12.63 8 14 15.90 196 222.6 15.13 0.59 93.21 9 16 8.10 256 129.6 9.92 3.33 304.66 10 18 2.90 324 52.2 4.71 3.29 513.23 11 20 1.50 400 30 -0.50 3.98 578.62 Sums: 110.00 281.10 1540.00 1664.80 281.10 46.48 3032.33
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Unformatted text preview: Avgs: 10.00 25.55 140.00 151.35 25.55 4.23 275.67 Eqn 1 a(1540) + b(110) = 1664.80 Eqn 2 a(110) + b(11) = 281.10 a = -2.61 b = 51.6 4. Regression Equation Solvent Concentration = -2.605(Time) + 51.604 Calculated r^2 0.98 5. R^2 value r^2 = 0.984 This means that the model explains 98.4% of the variability that exists in the data. Problem Description: Time (sec) Solvent Concentration (weight %) x i y i x i 2 x i y i 5 10 15 20 25 0.00 10.00 20.00 30.00 40.00 50.00 60.00 f(x) = -2.61x + 51.6 R² = 0.98 Solvent Concentration as a function of Time Time (seconds) Solvent Concentration (% weight)...
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