Many 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 group of its employees...

Many 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 group of its employees to​ program, and you have been requested to review the performance of one of the trainees on the final test that was given to all trainees. The mean and standard deviation of the test scores are

and

​respectively, and the distribution of scores is​ bell-shaped and symmetric. Suppose the trainee in question received a score of

Compute the​ trainee's z-score.