In a simple linear regression model created by a statistics teacher, it was desired to predict y = final exam score using x = homework average. The 90% prediction interval for students with a 90 homework average was found to be (79.4, 96.3). What does this mean in context? (a) We are 90% sure that the population slope for the model is between 79.4 and 96.3. (b) We are 90% sure the mean final exam score for all students with a 90 homework average is between 79.4 and 96.3. (c) If we randomly select a student from the population of all students, there would be a 90% chance of selecting a student with a final exam score between 79.4 and 96.3. (d) If we randomly select a group of students from the population of all students with a 90 homework average, there would be a 90% chance of selecting a sample mean final exam score between 79.4 and 96.3. (e) If we randomly select a student from the population of all students with a 90 homework average, there would be a 90% chance of selecting a student with a final exam score between 79.4 and 96.3