The Basic Practice of Statistics 7th Edition

Published by W. H. Freeman
ISBN 10: 146414253X
ISBN 13: 978-1-46414-253-6

Chapter 5 - Regression - Chapter 5 Exercises - Page 155: 5.38b

Answer

Equation of the line is: Absorb = 1.657 + 0.1133 Nitrate. Slope of the line implies that for increase in one unit of Nitrate, absorbance will increase by 0.1133. Putting Nitrate = 40, we have: Absorb = 1.657 + 0.1133 (40) = 6.189

Work Step by Step

Equation of the line is displayed on the graph obtained in part a.
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