Exhibit 15-9

question 29

Multiple Choice

Exhibit 15-9.An economist estimates the following model: .She would like to construct interval estimates for y when x equals 2.She estimates a modified model where y is the response variable and the explanatory variable is now defined as .A portion of the regression results is shown in the accompanying table. Refer to Exhibit 15-9.According to the modified model,what is a 95% prediction interval for y when x equals 2? (Note that . )

• A)[0.41,4.63]
• B)[14.21,35.35]
• C)[18.63,30.93]
• D)[20.35,25.65]

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Definitions:

Peptidoglycan Cell Wall

The peptidoglycan cell wall is a rigid and supportive layer found in the cell walls of most bacteria, providing structural strength and protecting against osmotic pressure.

Nuclear Membrane

The lipid bilayer membrane which encloses the nucleus, separating its contents from the cytoplasm and regulating molecule passage.

Ribosomes

The cellular structures responsible for protein synthesis, found floating freely within the cytoplasm or attached to the endoplasmic reticulum.

Cellular Respiration

The metabolic process by which cells produce energy in the form of ATP from glucose, involving various biochemical pathways including glycolysis and the Krebs cycle.