Question: 8 students were given a pretest to measure their public speaking anxiety. They completed a workshop to reduce their anxiety and were then given a posttest. Significance level=0.05, can one conclude that they workshop reduced anxiety? The pretest and posttest scores are shown here.( a lower score indicates lower anxiety)

Pretest 23 26 30 31 39 23 28 27

Posttest22 29 27 29 33 21 25 28