The tensile strengths of two types of materials were investigated by collecting 16 samples of each material (totally 32 samples). The sample mean for material 1 was XXXXXXXXXXpsi), and for material 2...

The tensile strengths of two types of materials were investigated by collecting 16 samples of each material (totally 32 samples).
The sample mean for material 1 was 423.08 (psi), and for material 2 was 424.7 (psi). The sample
standard deviation of the difference in tensile strengths was sD = 2.8 (psi). Is there sufficient
evidence to conclude that two types of materials have the same tensile strength? Formulate and
test the appropriate null H0 and alternative hypotheses H1 to verify the claim at level α = 0.01