c) A researcher conducts an experiment comparing two methods of teaching at the university. An older method is compared with a newer one and the mean performance of the new method was found to be greater than that of the older method. The results are reported as (t=2.10, df=20, p=0.4) i. How many participants were in the study? (2 Marks) ii. What would be your conclusion based on the results reported at 0.05 level of significance? (3 Marks)