In the first graph, we see the histogram of our entire data that we sampled. Underneath the histogram, but still in the same graph is our t-test hypothesis (at 3.0) and our results. To show whether or not our sample is normal, the second graph is a boxplot of the same data with the two outliers shown at 10.  We also have descriptive statistics that we can show from a minitab output:

                                                

Test of mu = 3 vs < 3

                                                     95% Upper
Variable                   N   Mean  StDev  SE Mean      Bound     T      P
exact minutes with secon  24  3.681  2.352    0.480      4.504  1.42  0.915