Solution Found!
In a study of the relationship between the Brinell
Chapter 7, Problem 2E(choose chapter or problem)
In a study of the relationship between the Brinell hardness \((x)\) and tensile strength in ksi \((y)\) of specimens of cold drawn copper, the least-squares line was \(y=-196.32+2.42x\).
a. Predict the tensile strength of a specimen whose Brinell hardness is 102.7.
b. If two specimens differ in their Brinell hardness by 3, by how much do you predict their tensile strengths to differ?
Equation Transcription:
Text Transcription:
(x)
(y)
y=-196.32+2.42x
Questions & Answers
QUESTION:
In a study of the relationship between the Brinell hardness \((x)\) and tensile strength in ksi \((y)\) of specimens of cold drawn copper, the least-squares line was \(y=-196.32+2.42x\).
a. Predict the tensile strength of a specimen whose Brinell hardness is 102.7.
b. If two specimens differ in their Brinell hardness by 3, by how much do you predict their tensile strengths to differ?
Equation Transcription:
Text Transcription:
(x)
(y)
y=-196.32+2.42x
ANSWER:
Step 1 of 2
a. Predict the tensile strength of a specimen whose Brinell hardness is 102.7.
Answer: The tensile strength of a specimen whose Brinell hardness is 102.7 is predicted to be 250.444 ksi.