The best example of a null hypothesis for testing an individual regression coefficient is ________. A)H₀: β₁ = β₂ = β₃ = β₄ = 0 B)H₀: µ₁ = µ₂ = µ₃ = µ₄ = 0 C)H₀: β₁ = 0 D)H₀: β₁ ≠ 0

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The null hypothesis for testing an individual regression coefficient is typically set up as stating that the coefficient is equal to a certain value (usually zero, unless there is a particular reason to expect a certain coefficient value). Therefore, Choice C is the best example of a null hypothesis for testing an individual regression coefficient, where it states that the coefficient β₁ is equal to zero. Choices A and B appear to be null hypotheses testing multiple coefficients (β₁ through β₄ or µ₁ through µ₄) simultaneously, which could be appropriate in some cases but do not fit the description of testing an individual coefficient. Choice D is not a null hypothesis, as it includes the inequality symbol rather than an equality symbol.

The Best Example of a Null Hypothesis for Testing an Individual