Based on Data from Two Very Large Independent Samples, Two

Multiple Choice

Based on data from two very large independent samples, two students tested a hypothesis about equality of population means using a = 0.05. One student used a one-tail test and rejected the null hypothesis, but the other used a two-tail test and failed to reject the null. Which of these might have been their calculated value of t?

A) 1.25
B) 2.25
C) 1.75
D) 1.50
E) 2.50