A regression of attitude toward legalizing marijuana on age (X1) and education (X2) produced the following estimated coefficients and standard errors for a sample of 265 persons:
b1 = -6.24 Sb1 = .346
b2 = +0.33 Sb2 = 0.12
Test one-tailed alternatives to the null hypotheses that ß2 > 0; use a = .01.