1 You are trying to determine the statistical significance o

1) 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 out of each pair of choices. Cost = 153.58 + 1.58 (Power) n=12 Sb1 = 17.669 (Show the Math) A: The tp is 1.812 A: The tp is 1.476 B: The tc is 0.089 B: The tc is 81.088 C: We would reject the null hypothesis C: We would fail to reject the null hypothesis D: We would consider using the equation D: We would not use the equation

Solution

Tp = 1.812 using tables of T distribution with alpha = 0.10 ---->alpha / 2 = 0.05 and df=10

Tc = 1.58 / 17.669 = 0.089

We would fail to reject the null hypothesi

because Tc is lower than Tp

We would consider using the equation D: We would not use the equation