Using a Sample of 63 Observations,a Dependent Variable Y Is

question 69

Multiple Choice

Using a sample of 63 observations,a dependent variable Y is regressed against two variables X₁ and X₂ to obtain the fitted regression equation Y = 76.40 - 6.388X₁ + 0.870X₂.The standard error of b₁ is 3.453 and the standard error of b₂ is 0.611.At a = .05,we could:

• A) conclude that both coefficients differ significantly from zero.
• B) reject H₀: β₁ ≥ 0 and conclude H₀: β₁ < 0.
• C) reject H₀: β₂ ≤ 0 and conclude H₀: β₁ > 0.
• D) conclude that Evans' Rule has been violated.

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Definitions:

Chain Termination

A method used in DNA sequencing that involves the selective incorporation of chain-terminating dideoxynucleotides by DNA polymerase.

DNA Sequencing

Procedure by which the sequence of nucleotides in DNA is determined.

Sanger

Refers to a method developed by Frederick Sanger for determining the sequence of nucleotide bases in DNA.

RNA Interference

A biological mechanism where RNA molecules suppress gene expression or translation by neutralizing specific mRNA molecules.