An Experiment Was Performed on a Certain Metal to Determine

Multiple Choice

An experiment was performed on a certain metal to determine if the strength is a function of heating time.The simple linear regression equation is = 1 + 1X.The time is in minutes and the strength is measured in pounds per square inch. Provide a managerial interpretation of the Y-intercept.

A) As time heated increase by one minute,the strength increases by 1lb.per sq.inch.
B) This is the direct relationship between X and Y.
C) If the metal is not heated,the estimated average metal strength is 1lb.per sq.inch.
D) Y-intercept cannot be interpreted.