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Consider the following linear regression model, which links the response variable y with k predictor variables x1, x2,..., xk:y=β0+β1x1+β2x2+... +βkxk+ε. If, for example, the slope coefficient β1 equals zero, then the predictor variable x1 does what and implies what? Choose all that answer the 'does what?' and 'Implies what?' questions!-Implying that x1 does not influence y-Drops out of the equation-Then x1 influences y-Does not drop out of the equation
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