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. ​ = 12 + 1.8x
​
N = 17
SSR = 225
SSE = 75
Sb₁ = .2683
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.