The AR(1) model was used to create an updated forecast for Amazon sales that account for trend, seasonality, and serial correlation is 97.6510
Accounting and revenue
Given that:
Equation of regression
Revenue = 22.67 + 2.538*t - 10.44*Q1 + 11.156*Q2- 8.77*Q3
t = 1 for the third quarter of 2013.
t = 33 for the third quarter of 2021
Revenue = 22.67 + 2.538*33 - 8.77 = 97.6510 billion dollars.
Therefore, Revenue = 97.6510 billion dollars
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