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Explanatory variables spread out to test a hypothesis

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Reference no: EM131251636

Why is it desirable to have the explanatory variables spread out to test a hypothesis regarding beta 1β1 or construct confidence intervals about beta 1β1?

Reference no: EM131251636

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Explanatory variables spread out to test a hypothesis : Why is it desirable to have the explanatory variables spread out to test a hypothesis regarding beta 1β1 or construct confidence intervals about beta 1β1?
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