Practice Exercises 4 ete the following practice problems. The goal of the practice exercises is to directly engage in content and to help prepare for the written assignments and the final project. The practice ses will be scored on completeness and effort of the attempt and not the percent correct. A able and complete submission will receive full credit for the activity. Provide as much evidence as le for your work on the assignment. Your mentor will provide holistic feedback based on your ssion. A population mean is 13. The sample mean is 12.8, and the sample standard deviation is 2. The sample size is 20. What distribution should you use to perform a hypothesis test? Assume the underlying population is normal. Particular distribution - led that the mean length of time on death row is if tha