Hello! I am very confused on these two correlating questions. Thank you so much for your help!

A researcher thinks that listening to classical music reduces anxiety. She measures the anxiety of 10 persons then plays Mozart's "Eine Kleine Nachtmusik\" {listen here if you want--you know the tunel} for them. Following that the researcher measures their anxiety again. {Note that anxiety is measured on a scale from 1 to I", with higher numbers indicating increased anxiety.) Does the study support her hypothesis? Compute the upper bound of the condence interval using the following data: mean of the difference scores {subtract pretest from posttestl: -1.D standard error of the difference scores: 0.5 The formula for the Cl upper bound is [standard error of the difference scores]"'[t critical yalue]+[mean of the difference scores] Your Answer: Answer I} View hint for Question 13 Question 14 {3 points} Would you reject the null hypothesis given your response to the question above? 1* Hide hint for Question 14 The sign of the mean differences is important here. If you expect a decrease in anxiety then the sign should be neeatiye. So the ouestion is if the uooer bound of the