THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION

question 54

Essay

THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION:
In a regression based on 35 annual observations,U.S.farm income was related to four independent variables- grain exports,federal government subsidies,population,and a dummy variable for bad weather years.The model was fitted by least squares,resulting in a Durbin-Watson statistic of 1.34.The regression of
on
_i yielded a coefficient of determination of 0.036.
-Test the model for heteroscedasticity.

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Definitions:

Random Assignment

A method used in experiments to distribute individuals randomly across experimental groups, ensuring that each participant has an equal chance of being assigned to any given group.

Naturalistic Observation

An observational method in which participants are viewed in their authentic surroundings without any meddling by the researcher.

Double-Blind Procedure

An experimental method in which neither the participants nor the experimenters know who is receiving a particular treatment, used to eliminate bias.

Replication

The process of duplicating or reproducing something, such as a scientific study, to verify its results.