Follow the 5 steps (provide solutions and explanations)

A teacher wishes to test whether the Case Method of teaching is more effective than the Traditional Method. She picks two classes of approximately equal intelligence (verified through an administered IQ test). She gathers a sample of 18 students to whom she uses the Case method and another sample of 14 students to whom she uses the Traditional Method. After the experiment, an objective test revealed that the first sample got a mean score of 28.6 with a standard deviation of 5.9, while the second group got a mean score of 21.7 with a standard deviation of 4.6. Based on the result of the administered test, can we say that the Case Method is more effective than the Traditional Method? Use =0.05

1. State the null and alternative hypothesis: Ho and Ha 2.Use t-test formula them compute its value. 3.Find the critical value and draw the critical region. 4. Draw a conclusion.