Consider the Following Regression Model: Y = β₀ + β₁x₁

question 10

Multiple Choice

Consider the following regression model: y = β₀ + β₁x₁ + u.Which of the following is a property of Ordinary Least Square (OLS) estimates of this model and their associated statistics?

• A)The sum,and therefore the sample average of the OLS residuals,is positive.
• B)The sum of the OLS residuals is negative.
• C)The sample covariance between the regressors and the OLS residuals is positive.
• D)The point ( , )always lies on the OLS regression line.

---

Definitions:

Decreased Urine Volume

A condition characterized by the production of less urine than normal, potentially indicating dehydration or kidney issues.

Sweat

Perspiration; secretions produced by the sweat glands of the skin; also called sensible perspiration.

Hematocrit

Percentage of blood volume occupied by erythrocytes.

ADH Production

The synthesis of Antidiuretic Hormone, also known as vasopressin, which is responsible for regulating water balance in the body by controlling the amount of water reabsorbed by the kidneys.