1. In a sample of 38 out of 120 students final exam scores, we conduct a hypothesis test where the claim is that the mean final exam score is 85. The known standard deviation for the final exam is 10 points. In other words, on average, 38% earns a 85 on their final exam. Let's say the percentage follows a normal distribution with a standard deviation of 12%. What is the probabiliy of students earning a grade of 85 be no more than 20%?