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 70
And 3, respectively, and the distribution of scores is mound-shaped and symmetric. Suppose the
Trainee in question received a score of 60. Compute the traineeʹs z-score.
A)z = 0.81
B)z = -30
C)z = -10
D)z = -3.33

Question

Quizplus · Accepted Answer

The z-score is calculated using the formula $z = \frac{(X - \mu)}{\sigma}$, where $X$ is the value in question, $\mu$ is the mean, and $\sigma$ is the standard deviation. Plugging in the values: $z = \frac{(60 - 70)}{3} = -3.33$.

Many Firms Use On-The-Job Training to Teach Their Employees Computer