UBS Solution receives calls for technical support. In the past, the average response time has been at least 25 minutes. It believes the average response time can be reduced to less than 25 minutes. Sample data for 44 customers revealed a mean response time of 21.91 minutes and a sample standard deviation of 19.49 minutes. Based on the above case: a) Write Ho and H b) If t-statistic and critical value for the above case are each -1.05 and 1.68, what would be your decision on Ho? c) If the p-value for the above case is 0.1498, what would be your decision on Ho? (6 marks)