this subject is Practical Research2. please Help me.

What I Can Do Directions: Analyze the table below and solve the following. Write your answers on the space provided. CONTROL PRE-TEST POST-TEST EXPERIMENTAL PRE-TEST POST-TEST GROUP 20/20 20/20 GROUP 20/20 20/20 STUDENT A 11 15 STUDENT A 10 16 STUDENT B 12 16 STUDENT B 11 17 STUDENT C 8 13 STUDENT C 14 STUDENT D 9 14 STUDENT D 17 STUDENT E 16 STUDENT E 16 STUDENT F 9 17 STUDENT F 17 STUDENT G 12 15 STUDENT G 11 15 STUDENT H 13 18 STUDENT H 12 15 STUDENT I 7 12 STUDENT I 9 12 STUDENT J 16 STUDENT J 10 19 STUDENT K 15 STUDENT K 11 17 STUDENT L 10 15 STUDENT L 12 15 1. Solve the mean scores of: a. Control group pre-test b. Control group post-test c. Experimental pre-test d. Experimental post-test 2. Find the t-test-of pre-test and pos-test of control group at 0.05 level of significance (one-tailed only). 3. Find the t-test-of pre-test and pos-test of experimental group at 0.05 level of significance (one-tailed only). 4. Find the standard deviation of pre and post-test of control group. 5. Find the standard deviation of pre and post-test of experimental group