An evaluation was recently performed on electrically conductive materials and data were collected that classified each component as having a flaw or not and also reported the size of the crack in the material.

Unflawed 0.0263 0.0314 0.0424 0.0485 0.0485 0.0505 0.0682 0.0644

Flawed 0.0572 0.0857 0.0806 0.0887 0.0916 0.0986 0.1051 0.1085

a. Assuming the population variances areequal, is there evidence that the mean crack size is smaller for the unflawed specimens than for the flawedspecimens? (Use alpha equals 0.05

Reject H0. There is insufficient evidence that the means differ

Do not reject H0. There is sufficient evidence that the means differ

Do not reject H0. There is insufficient evidence that means differ

Reject H0. There is sufficient evidence that means differ