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 0.001Two sample T hypothesis test: H1: Mean of Carbon M2: Mean of Steel Hi - H2: Difference between two means Ho : HI - 12 = 0 HA : M1 - H2 # 0 (without pooled variances) Sample Statistics: Sample n Mean Std. dev. Carbon 27 18.540741 4.3575098 Steel 31 20.496774 5.0872051 Hypothesis test results: Difference Sample Diff. Std. Err. DF T-Stat P-value LL1 - H2 -1.9560335 1.2401947 55.988789 -1.5771987 0.1204