Question

True / False: A randomization test for H0 : p1 = p2 uses a randomization distribution centered at 0.

Answer 1

A randomization distribution is centered at the value of the parameter given in the null hypothesis.

$H_0:p_1=p_2$ is equivalent $H_0:p_1-p_2=0.$

A randomization test for $H_0:p_1=p_2$ uses a randomization distribution centered at 0. True.