10.11. Steel rods with 10 mm diameters are used in the construction of bridges. The steel rods are used only if their yield stress exceeds 490. The state government is reviewing the product of one...

10.11. Steel rods with 10 mm diameters are used in the construction of bridges. The steel rods are used only if their yield stress exceeds 490. The state government is reviewing the product of one manufacturer to possibly use in the construction. The product will be tested before issuing a contract. What null and alternative hypotheses should the state government test to determine whether the steel rods meet the requirement?

10.12 Refer to the situation in Exercise 10.11.

a. Describe type I and type II hypotheses that the state government could possibly make.

b. Describe consequences of making such errors.

Extracted text: government test to determine whether the steel rods meet the requirement? 10.11. Steel rods with 10 mm diameters are used in the construction of bridges. The steel rods are used only if their yield stress exceeds 490. The state government is reviewing the product of one manufacturer to possibly use in the construction. The product will be tested before issuing a contract. What null and alternative hypotheses should the state 10.12, Refer to the situation in Exercise 10.11. a. Describe type I and type II hypotheses that the state government could possibly make. b. Describe consequences of making such errors.