A metal is plastically deformed in a tensile test. The starting specimen had a gage length = 2.0 in and an area = 0.50 in^2. At one point during the test, the gage length = 23 in, and the corresponding engineering stress = 25,000 lb/in^2. At another point prior to necking, the gage length 3.0 in, and the corresponding engineering stress = 28,000 lb/in^2. Determine the strength coefficient and the strain-hardening exponent for this metal.