Answer A and B

Return to question 8 Consider the following data on 20 chemical reactions, with Y = chromatographyc retention time (seconds) and X = molecular weight (gm/mole). Retention Time and Molecular Weight (n = 20) Retention Molecular 2 Name Time Weight points alpha-pinene 234.50 136.24 cyclopentene 95. 27 68 . 12 p-diethyl benzene 284.00 134.22 decane 250. 60 142.29 toluene 174.00 92. 14 benzene 135. 70 78 . 11 2-methyl pentane 97 .24 86 . 18 2,3 dimethylbutane 100 . 70 86 . 18 1, 7-octadiene 172.20 110 .20 1, 2, 4-trimethyl benzene 262.70 120.19 2, 3, 4-trimethyl pentane 160.98 114.23 ethylcyclohexane 195.07 112.22 limonene 271.50 136.24 methyl cyclohexane 153.57 98. 19 m-diethyl benzene 281.50 134.22 2, 3-dimethyl pentane 131.83 100.20 2, 2-dimethyl butane 89. 34 86 . 18 pentane 78.00 72. 15 isooctane 136.90 114.23 hexane 106.00 86 . 182 Click here for the Excel Data File points (a) Write the fitted regression equation. {Round your answers to 4 decimal places. A negative value should be indicated by a minus sign.) y" = X + (b) Calculate R2. {Round your answer to a decimal places} 92