If the true model is given by y=Bo+B1X1+B2X2+ɛ but we omit X2then Select one: O a. None of the above O b. the forecast of y will be biased Oc. if X1 and X2 are uncorrelated, the t statistic for testing B1=0 from the model with omitted variables is likely to be larger in absolute value than that from the true model O d. the estimated B1 will be biased O e. if X1 and X2 are uncorrelated, the s.e. of estimated B1 with omitted variables will be smaller than the s.e. of estimated B1 with the true model
Correlation
Correlation defines a relationship between two independent variables. It tells the degree to which variables move in relation to each other. When two sets of data are related to each other, there is a correlation between them.
Linear Correlation
A correlation is used to determine the relationships between numerical and categorical variables. In other words, it is an indicator of how things are connected to one another. The correlation analysis is the study of how variables are related.
Regression Analysis
Regression analysis is a statistical method in which it estimates the relationship between a dependent variable and one or more independent variable. In simple terms dependent variable is called as outcome variable and independent variable is called as predictors. Regression analysis is one of the methods to find the trends in data. The independent variable used in Regression analysis is named Predictor variable. It offers data of an associated dependent variable regarding a particular outcome.
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