When Using the T-Statistic in Multiple Regression to Determine If

question 32

Multiple Choice

When using the t-statistic in multiple regression to determine if a variable should be removed:

• A)R² will increase if the variable is removed.
• B)if |t| > 1, the standard error will decrease.
• C)a large number of independent variables is convenient.
• D)if |t| < 1, the standard error will increase.

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Definitions:

Monozygotic Twins

are twins that originate from the splitting of a single fertilized egg, making them genetically identical.

Dizygotic Twins

Also known as fraternal twins, are siblings born at the same time but from separate eggs fertilized by different sperm.

Siblings

Brothers or sisters; individuals having one or both parents in common.

Natural Selection

The evolutionary process by which organisms better adapted to their environment tend to survive and produce more offspring.