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The accompanying table shows the regression results when estimating y = β0 + β1x1 + β2x2 + β3x3 + ε. When testing whether or not x1 and x2 are jointly significant,the null hypothesis is ____________.
Tay-Sachs Disease
A fatal genetic neurological disorder in which nerve cells in the brain and spinal cord are progressively destroyed.
Amino Acids
Organic compounds that combine to form proteins, serving as the building blocks of life.
Huntington Disease
is a genetic disorder that causes the progressive breakdown of nerve cells in the brain, affecting an individual's physical and mental abilities.
Uncontrollable Muscle Movements
Involuntary, often erratic, muscular actions that cannot be consciously controlled, which may be symptoms of neurological disorders.
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