Suppose That You Have Many Observations of the Employee Level

question 45

Multiple Choice

Suppose that you have many observations of the employee level longevity and the wage earned by that employee that year. You run the regression Longevity_i = β₀ + β₁ Wage_i +U_i, and get an estimate of β₁. Now, suppose that a member of the analytics team suggests that education is an omitted variable in your regression and is likely biasing your estimate of β₁. Suppose you knew that, conditional on Wage, more educated employees tended to have shorter stints with the company (lower longevity) and that the error, η_i, in the equation Longevity_i = β₀ + β₁Wage_i + β₂ Education_i + U_i, was uncorrelated with both Wage and Education. How would you sign the bias on your estimate of β₁?

• A) Argue that education is positively correlated with wage and that your estimate of β₁ is an upper bound.
• B) Argue that education is negatively correlated with wage and that your estimate of β₁ is a lower bound.
• C) Argue that education is positively correlated with wage and that your estimate of β₁ is a lower bound.
• D) Argue that education is positively correlated with longevity and that your estimate of β₁ is an upper bound.

Understand the impact of violence and crime on health care practice and the development of forensic nursing specialties.

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Recognize the unique practice setting and spiritual focus of faith community nursing.

Identify strategies for managing overwhelming community needs and utilizing community resources.

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Legislation that regulates the operation of banks, establishes banking practices, and ensures the stability and integrity of the banking system.