Discuss some of the signals for the presence of multicollinearity


There are several clues to the presence of multicollinearity: (1) an independent variable known to be an important predictor ends up having a partial regression coefficient that is not significant; (2) a partial regression coefficient exhibits the wrong sign; and/or, (3) when an independent variable is added or deleted, the partial regression coefficients for the other variables change dramatically. A more practical way to identify multicollinearity is through the examination of a correlation matrix, which is a matrix that shows the correlation of each variable with each of the other variables. A high correlation between two independent variables is an indication of multicollinearity.

Business

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Which of the following statements is true of state action?

A. State action is not involved if policies are mandated by federal law. B. Private deprivation of individual liberties is permitted only if interference of state action is prohibited by statute. C. The Constitution protects an individual only against governmental activity, usually called state action. D. The constitutional checks on governmental power do not apply to the Congress.

Business

Product life cycles are concerned with sales and profits

A. of goods but not services. B. in generic markets, not individual product-markets. C. in a product-market. D. of a firm's individual products or brands. E. None of these answers is correct.

Business

The acquisition of Dime Bancorp by Washington Mutual resulted in the following ______.

A. expansion of services into insurance industry B. the failure by Washington Mutual to adopt more of dime’s culture, leadership, and methods of doing business C. divestiture of Dime by Washington Mutual D. liquidation of Dime Bancorp Inc.

Business

The parol evidence rule applies to partially written agreements

Indicate whether the statement is true or false

Business