Activity No. 1 & Grade 12 STEM Descartes class 1.0 mg 1.5 gm conducted an experimental dose dose research. Two groups of 9.8 12.0 13.2 7.4 experimental rats were injected 11.2 9.8 with a tranquilizer at 1.0 mg. and 9.5 11.5 1.5 mg. dose respectively. The time 13.0 13 12.1 12.5 given in seconds that took them to 9.8 9.8 fall asleep is hereby given. Use the 12.3 10.5 t-test for independent sample at 7.9 13.5 10.2 .05 to test the null hypothesis that 9.7 the difference is dosage has no effect on the length of time it took them to fall asleep.1. Problem: 1. Hypotheses: m. Level of Significance: Iv. Statistics: v. Decision Rule: VI. Conclusion: Solving by the Stepwise Method