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Paired T hypothesis test: HD = HI - H2: Mean of the difference between Carbon and Steel HA : HD = 0 HA : HD

Paired T hypothesis test: HD = HI - H2: Mean of the difference between Carbon and Steel HA : HD = 0 HA : HD # 0 Hypothesis test results: Difference Mean Std. Err. DF T-Stat P-value Carbon - Steel -1.6647059 0.41364068 16 -4.0245216 0.001

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