Supposed That You Are Interested in Estimating Country-Level Maternal Mortality

question 20

Multiple Choice

Supposed that you are interested in estimating country-level maternal mortality rate (mmr_t) based just on the gross domestic product per capita (gdppc_t) and literacy rate (lr_t) and you find that countries that have unusually high (for the given levels of gdppc and lr) mmr in one period also have unusually high mmr in the next period. Which of the following assumption for time series analysis does not hold?

• A)No perfect collinearity.
• B)Zero conditional mean.
• C)Homoskedasticity.
• D)No serial correlation.

---

Definitions:

Gram-variable

Refers to bacteria that do not consistently stain either Gram-positive or Gram-negative due to certain conditions or characteristics of the cell wall.

Anthrax

A serious infectious disease caused by the bacterium Bacillus anthracis, affecting both humans and animals, and can be transmitted through contact with infected animals or animal products.

Gram-positive

Refers to bacteria that retain the crystal violet dye used in the Gram stain process, indicating a thicker peptidoglycan layer in the cell wall.