Based on Data from Two Very Large Independent Samples, Two

question 33

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 hypothesis. Which of these might have been their calculated value of t?

• A) 1.88
• B) 2.66
• C) 1.55
• D) 2.22
• E) 1.22