The authors of the paper Power-Load Prediction Based on Multiple Linear Regression Model (Boletin Tecnico [2017]: 390397)

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The authors of the paper “Power-Load Prediction Based on Multiple Linear Regression Model” (Boletin Tecnico [2017]: 390–397) were interested in predicting the load on the electric power system in China using data on y = Power consumption (in hundreds of millions of kwh), x1 = Population (in millions), and x2 = Gross domestic product (in billions of dollars), for 21 years. The model equation proposed in the paper is

y = -113,527 + 0.974x1 + 0.057x2 + e


a. According to this model, what is the mean power consumption for a year if the population was 130,000 million and the gross domestic product was 400,000 billion dollars?

b. Interpret the value of β1 in this model.

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Introduction To Statistics And Data Analysis

ISBN: 9781337793612

6th Edition

Authors: Roxy Peck, Chris Olsen, Tom Short

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