Biostatistics Quiz
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HYPOTHESIS TESTING
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A researcher tests H₀: μ₁ = μ₂ versus H₁: μ₁ ≠ μ₂ using a two-sample t-test. With α = 0.05, the calculated t-statistic is -2.14 and the critical values are ±2.048. The researcher concludes there is a significant difference. What error, if any, has been made?
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