c) A sample of 20 observations was divided into two equal sets after arranging for the independent variable, without omitting any central observations at all. The results for these two sets are given below. Test for the presence of heteroscedasticity using an appropriate test. Show all the steps involved and assumptions made. Regression results for set 1: y^ = 1.0536+0.8760 x Residual sum of squares: 3.8128 Regression results for set 2: y^ = 4.7110+0.7882 x Residual sum of squares: 25.7026 Critical value: 3.44

c) A sample of 20 observations was divided into two equal sets after arranging for the independent variable, without omitting any central observations at all. The results for these two sets are given below. Test for the presence of heteroscedasticity using an appropriate test. Show all the steps involved and assumptions made. Regression results for set 1: y^ = 1.0536+0.8760 x Residual sum of squares: 3.8128 Regression results for set 2: y^ = 4.7110+0.7882 x Residual sum of squares: 25.7026 Critical value: 3.44

ENGR.ECONOMIC ANALYSIS

14th Edition

ISBN:9780190931919

Author:NEWNAN

Publisher:NEWNAN

Chapter1: Making Economics Decisions

Section: Chapter Questions

Problem 1QTC

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