An instructor at Arizona State University asked a random sample of eight students to record their study times in a elementary statistics course. She then made a table for total hours studied over 2 weeks and test scores at the end of the 2 weeks. Here are the data:
Study time 10 15 12 20 8 16 14 22
Test Scores 92 75 86 76 92 80 84 81
Assuming that a linear association exists, how are the data correlated? Determine the exact linear relationship between study times and test scores and use it to estimate the predicted test score for a student who studies 12 hours.