Listening to music while taking a test may be relaxing or it may be distracting. To determine which, 25 participants are tested while listening to music and they produce a sample mean of 54.63 and a sample standard deviation of 12. The mean of the population of students who have taken this test without music is 50 ( = 50). Is there a difference in the test scores between the sample of students who listened to the music and the students who have taken this exam without listening to the music?77. What is the numeric value (the value that you calculated) of your standard error? a) 12 b) 2.45 c) 2.5 d) 0.48 e) 2.4 78. The numeric value (the value that you calculated) of the appropriate test statistic is 1.93? a) True b) False