I a Variable Whose Possible Outcomes Are Coded as a "1

question 34

Multiple Choice

i. A variable whose possible outcomes are coded as a "1" or a "0" is called a dummy variable.
ii. A dummy variable is added to the regression equation to control for error.
iii. If the null hypothesis β4 = 0 is not rejected, then the independent variable X4 has no effect in
Predicting the dependent variable.

• A) (i), (ii), and (iii) are all correct statements.
• B) (i) and (ii) are correct statements but not (iii).
• C) (i) and (iii) are correct statements but not (ii).
• D) (ii) and (iii) are correct statements but not (i).
• E) (i), (ii), and (iii) are all false statements.

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Definitions:

ATP Synthesis

The biochemical process creating ATP (adenosine triphosphate), the primary energy carrier in cells, through cellular respiration or photosynthesis.

Glycolysis

The metabolic pathway that breaks down glucose to pyruvate, generating energy in the form of ATP and NADH, occurring in the cytoplasm of cells.

Pyruvate Molecules

Organic compounds that play a key role in metabolic pathways, particularly glycolysis, where glucose is broken down to produce energy.

ATP

Adenosine triphosphate, a high-energy molecule that stores and supplies the cell with needed energy for various functions.