You are trying to determine the statistical significance of an equation. Given the following information, test the slope of the equation at the 90% level of confidence. Select the correct answer A or B out of each pair of choices. Cost = 153.58 + 1.58 (Power) n=7 Sb1 = 1.894 A The tp is 2.015 B The tp is 1.476 A The tc is 0.834 B The tc is 81.088 A We would reject the null hypothesis B We would fail to reject the null hypothesis A We would consider using the equation B We would not use the equation