As the Carbon Content in Steel Increases, Its Ductility Tends

Multiple Choice

As the carbon content in steel increases, its ductility tends to decrease.A researcher at a steel company measures carbon content and ductility for a sample of 15 types of steel.According to the output provided below, the standard error of the regression slope is ________________________ .

A) -3.296
B) +2.363
C) +1.097
D) +1.507
E) +5.090