HAC Standard Errors and Clustered Standard Errors Are Related as Follows

question 18

Multiple Choice

HAC standard errors and clustered standard errors are related as follows:

• A)they are the same
• B)clustered standard errors are one type of HAC standard error
• C)they are the same if the data is differenced
• D)clustered standard errors are the square root of HAC standard errors

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Definitions:

Mesoderm

The middle layer of an embryo in early development, which gives rise to muscles, bones, and circulatory and excretory systems.

Germinal Period

The initial two weeks of prenatal development after conception, characterized by rapid cell division and the beginning of cell differentiation.

Blastocyst

An early stage of embryonic development that consists of a sphere of cells surrounding a fluid-filled cavity.

Embryo

The early stage of development in multicellular organisms, in humans this phase extends from the second to the eighth week of gestation.