8. Suppose a Stat 121 professor would like to predict the mean final exam score of all students who obtained 80% on exam 3. What kind of interval should she use? Group of answer choices Prediction interval for Confidence interval for Confidence interval for y Prediction interval for y The following information applies to questions 9-10. Go to Link (Links to an external site.). On the left panel, select "Regression". Select the "Graduate Admission for Indian Students" dataset, then select "GRE.score" as your explanatory variable and "Chance.of.Admit" as your response variable. Generate a scatterplot of the data. Select "Proceed to Checking Assumptions", then "Proceed to Regression Analysis", then "Proceed to Predictions". Question 9 1 pts Suppose a student scores a 310 on the GRE. With 98% confidence, A student's chances of admission is between _____ and _____. Group of answer choices (0.645, 0.668) (0.457, 0.856) (0.647, 0.666) (0.489, 0.824) Question 10 1 pts With 98% confidence, the mean chance of admission for all students who score a 310 on the GRE is between _____ and _____. Group of answer choices (0.645, 0.668) (0.457, 0.856) (0.647, 0.666) (0.489, 0.824)