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

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.1: Measures Of Center

Problem 9PPS

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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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