Question

This Question: 1 pt was 57. The tost scores of four students selected at random are 15, 22, 8, and 37. A standardized exam's scores are normaly distributed. In a recent year, the mean lost score was 20.9 and Find the scores that correspond to each value and determine whether any of the values are unusual The 2-score for 150 (Round to two decimal places as needed) The score for 22 is (Round to two decimal places as needed.) The 2-score for Bis (Round to two decimal places as needed.) The Z-score for 37 is (Round to two decimal places as needed.) Which values, if any, are unusual? Select the correct choice below and, if necessary, fill in the answer box within your choice. O A The unusual value(s) is/are (Use a comma to separate answers as needed) OB. None of the values are unusual Click to select your answer(s). - 12:50 PM 11/10/2019 Type here to search ASUS ZenBook 0 2 Oghome 10 end Oppon PC

Answer 1

Answer Date: 11/11/2019 The Z-score of 15 is, __X - 15 – 20.9 5.7 =-1.04 The Z-score of 15 is -1.04) The Z-score of 22 is, X-4 7 = 22-20.9 5.7 = 0.19 The Z-score of 22 is 0.19

The Z-score of 8 is, X-41 _8-20.9 5.7 = -2.26 The Z-score of 8 is -2.26. The Z-score of 37 is, 2=X_H 37 - 20.9 5.7 = 2.82 The Z-score of 37 is 2.82]. The unusual values are 8, 37). The unusual values are 8 and 37 due to their Z-scores are -2.26 and 2.82 fall out of range between -2.00 and 2.00.