Regression Analysis Was Applied Between Sales Data (Y in $1000s)

Multiple Choice

Regression analysis was applied between sales data (y in $1000s) and advertising data (x in $100s) and the following information was obtained. $$\begin{array} { l } \widehat { y } = 12 + 1.8 x \\n = 17 \\\mathrm { SSR } = 225 \\\mathrm { SSE } = 75 \\\mathrm {~s} b _ { 1 } = .2683\end{array}$$ The critical t value for testing the significance of the slope, at a .05 level of significance, is

A) 1.753.
B) 2.131.
C) 1.746.
D) 2.120.