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Business Statistics, 3rd Edition
book

Business Statistics, 3rd Edition

by Naval Bajpai
April 2024
Intermediate to advanced content levelIntermediate to advanced
921 pages
37h 16m
English
Pearson India
Content preview from Business Statistics, 3rd Edition
Chapter 16
694
when compared to the linear regression model. This comparison can be easily understood with
the  tted line plot (linear) and  tted line plot (quadratic) exhibited in Figures 16.65 and 16.66
produced using Minitab.
From Figure 16.64, the quadratic trend forecasting equation can be stated as below:
Pro t after tax = 5543 + 168.6 (Time period) + 182.6 (Time Period)
2
The estimated pro t after tax in 2010–2011 can be obtained by substituting time period = 22 in the
quadratic trend forecasting equation given. So, the estimated pro t after tax for year 2010–2011 is
Pro t after tax = 5543 + 168.6 × (22) + 182.6 × (22)
2
= 97630.6 million ...
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Publisher Resources

ISBN: 9789390168996