8. To decide whether two different types of steel have the same true average fracture toughness…

8. To decide whether two different types of steel have the same true average fracture toughness values, a number of specimens of each type are tested, yielding the following results: Type Sample Average Population Standard Sample Size Deviation 1.0 0.5 60.1 59.9 100 50 State and test the appropriate hypotheses given ? 0.05, (10 points)