Consider the following data on 20 chemical reactions, with Y = chromatographic retention time (seconds) and X = molecular weight (gm/mole).   Retention Time and Molecular Weight (n = 20) Name RetentionTime Molecular Weight 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     86.18          Click here for the Excel Data File (a) Write the fitted regression equation. (Round your answers to 4 decimal places. A negative value should be indicated by a minus sign.)  yˆy^ =  Not attemptedX + Not attempted (b) Calculate R2. (Round your answer to 4 decimal places.)  R2            Not attempted

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Consider the following data on 20 chemical reactions, with Y = chromatographic retention time (seconds) and X = molecular weight (gm/mole).

 

Retention Time and Molecular Weight (n = 20)

Name Retention
Time
Molecular Weight
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     86.18  
 

 

 
 Click here for the Excel Data File
 
(a) Write the fitted regression equation. (Round your answers to 4 decimal places. A negative value should be indicated by a minus sign.)
  
yˆy^ =  Not attemptedX + Not attempted
 
(b) Calculate R2(Round your answer to 4 decimal places.)
  
R2            Not attempted
 

 

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