The accompanying data represent the pulse rates (beats per minute) of nine students. Treat the nine students as a population. Compute the z-scores for all the students. Compute the mean and standard deviation of these z-scores. Compute the mean of these zscores. The mean of the z-scores is (Round to the nearest tenth as needed.) Compute the standard deviation of these z-scores. The standard deviation of the zscores is (Round to the nearest tenth as needed.) Compute the zsoores for all the students. Complete the table. Student z-score Student z-score Student 1 D Student 6 D Student 2 D Student 7 D Student 3 D Student 8 D Student 4 D Student 9 D Student 5 D (Round to the nearest hundredth as needed.)