Consider the following data on 20 chemical reactions, withY= chromatographic retention time (seconds)

Retention Time and Molecular Weight (n = 20)RetentionMolecularNameTimeWeightalpha-pinene234.50136.24cyclopentene95.2768.12p-diethyl benzene284.00134.22decane250 . 60142.29toluene174 .0092 . 14benzene135 .7078. 112-methyl pentane97 . 2486 . 182,3 dimethylbutane100 .7086 . 181, 7-octadiene172 . 20110 .201, 2,4-trimethyl benzene262.70120. 192,3,4-trimethyl pentane160 .98114.23ethylcyclohexane195.07112.22limonene271 .50136.24methyl cyclohexane153.5798. 19m-diethyl benzene281 .50134 .222,3-dimethyl pentane131 .83100 .202, 2-dimethyl butane89.3486. 18pentane78.0072 . 15isooctane136. 90114 .23hexane106 .0086 . 18