Find the z-score for the value 79. when the mean is 55 and the standard deviation is 5. O.A Z = 4.80 OB Z=-1.35 OCZ = 1.35 OD Z = 4.60Many firms use on-the-job training to teach their employees computer programming. Suppose you work in the personnel department of a firm that just finished training a gro its employees to program, and you have been requested to review the performance of the trainees on the final test that was given to all trainees. The mean and standard devi of the test scores are 75 and 2, respectively, and the distribution of scores is bell-shape symmetric. Suppose the trainee in question received a score of 68. Compute the traine score. OAZ = 2.50 OB.Z = -3.50 OCZ = 0.88 OD.Z = -0.88