A researcher conducts a repeated-measures study to evaluate a treatment with a sample ofn=16 participants and obtains a t statistic of t = 1.94. The treatment is expected to increase scores and the sample mean shows an increase. Which of the following is the correct decision for a hypothesis test usinga= .05.

Reject the null hypothesis with a one-tailed test but fail to reject with two tails

Reject the null hypothesis with either a one-tailed or a two-tailed test

Fail to reject the null hypothesis with either a one-tailed or a two-tailed test

Fail to reject the null hypothesis with a one-tailed test but reject with two tails