Given the Regression Model Y = β₀ + β₁X₁

question 117

Multiple Choice

Given the regression model y = β₀ + β₁X₁ + β₂X₂ + ε,if we are testing the significance of the independent variable X₁ and we reject the null hypothesis H₀: β₁= 0,we conclude that:

• A)X₁is significantly related to y in this model.
• B)X₁is not significantly related to y in this model.
• C)β₁is not significantly related to y in this model.
• D)β₁is significantly related to y in this model.
• E)the error term assumptions have been satisfied.

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Definitions:

Green Wavelengths

Parts of the visible light spectrum that are perceived as green, important for photosynthesis as they are absorbed by plants for energy.

UV Wavelengths

The portion of the electromagnetic spectrum with wavelengths shorter than visible light but longer than X-rays, known for having sterilizing properties and causing sunburn.

Action Spectrum

A graph of the effectiveness of light at specific wavelengths in promoting a light-requiring reaction. Compare with absorption spectrum.

Absorption Spectrum

A graph of the amount of light at specific wavelengths that is absorbed as light passes through a substance. Each type of molecule has a characteristic absorption spectrum. Compare with action spectrum.