'48,. A sample of 49 night school students showed that the students had a mean age of 25.3 years. Assume that the population standard deviation 0 is 3.5 years. We wish to use the Critical Value method to test the claim \"T he mean age of night school students is at most 24 years old\". a. State Ho and Ha using math symbols b. Determine the test statistic 0. Determine the critical region for the Hypothesis Test using on = 0.05. d. State the decision and conclusion regarding the Null Hypothesis