Hello! I am so confused on my stats homework questions 6 and 7. They coorelate together, and I am so lost. I cant comprehend what the problem is asking me at all. Thank you so much for your help! There is also a hint at the bottom for question 7

SY:=SY1r2 A researcher asks if study time {in hours} predicts test performance {El-100}. She asked students to report study time prior to giving an exam. She obtained the following data: Standard deviation of test performance: 14.00 Correlation between study time and test performance: ELTD Compute the standard error of the estimate using the formula above. Your Answer: Answer Question 7 [3 pointsl 1till-"hat do you conclude about predicting test performance with study time? Is it an improvement over predicting test scores with the mean test score? Why or why not? tr 1" Hide hint for Question 7-" Notice that you don't have the mean of Y here. But you don't need it to answer the question. Think of it this way: The standard deviation tells us the average distance of the scores around the mean. If a regression is useful, knowing someone's score on X improves our prediction of that person's Y score rather than just using the mean. The improvement is the difference between the standard deviation and the standard error of the estimate