Exercise. Researchers conducted a study to investigate whether listening to music while taking a test is relaxing or distracting. Researchers selected a sample of 49 students to take a test while listening to music. These students scored an average of 54.36 points (E = 54.36}. The average score for the population of students taking the testwithout music is 5D [u = 5D}. with \"x = 12. Answer the following questions. Enter vour response in the corresponding assignment on Canvas. 1. Should the researchers run a one-tailed or two-tailed statistical test? 2. List the null hypothesis and the alternative hypothesis. 3. Calculate the standard error of the mean: {2 decimal places] 4. Calculate the 2 observed value: {2 decimal places} 5. Should the researcher retain or relect the null hvpothesls? [You might