The table below brings the time spent (in minutes) on the graded practice exam 1 and the scores of 10 randomly selected ECN 221 online students. time spent (in mins) Grade (out of 10) 15 8.6 8 6.1 223 5.4 12 47 6.3 20 20 9.6 11 9.4 22 22 5.2 16 16 3.7 21 8.6 7 9.7 Calculate the Z-score for grades when the grade is equal to 1.1. Use s.d. = 1.86 Round up to four decimal places for your final answer. Include the zero and the MINUS before the decimal place when needed. E.g., -0.1234