Given the simple regression model

and the regression results that follow, test the null hypothesis that the slope coefficient is 0 versus the alternative hypothesis of greater than zero using probability of Type I error equal to 0.01, and determine the two-sided 90% and 95% confidence intervals. 

a. A random sample of size n = 35 with b₁ = 5, s_b1 = 1.9

b. A random sample of size n = 50 with b₁ = 5.2, s_b1 = 1.9

c. A random sample of size n = 35 with b₁ = 1.8, s_b1 = 1.25

d. A random sample of size n = 32 with b₁ = 8.6, s_b1 = 1.2

Transcribed Image Text:

Y = Bo + BiX