Question: [1.3 Statistical Inference] To test whether an explanatory variable in simple linear regression is statistically significantly positive, we ... Group of answer choices conduct a

[1.3 Statistical Inference] To test whether an explanatory variable in simple linear regression is statistically significantly positive, we ... Group of answer choices conduct a one-tailed test using a Z distribution conduct a two-tailed test using a Z distribution conduct a one-tailed test using a t distribution conduct a two-tailed test using a t distribution None of the above

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