Scores on a test have a mean of 80 and a standard deviation of 6. Tony has a score of 72. Convert Tony's score to a z-score. Rounded to the nearest hundredth.
Added by James K.
Close
Step 1
The mean ($\mu$) is 80. The standard deviation ($\sigma$) is 6. Tony's score (x) is 72. Show more…
Show all steps
Your feedback will help us improve your experience
Adi S and 81 other Intro Stats / AP Statistics educators are ready to help you.
Ask a new question
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
Scores on a test have a mean of 78 and a standard deviation of 13 . Tom has a score of 66 . Convert Tom's score to a z-score, rounded to the nearest hundredth
Adi S.
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 72 and 5, respectively, and the distribution of scores is bell-shaped and symmetric. Suppose the trainee in question received a score of 68. Compute the trainee's z-score. Group of answer choices z = -0.88 z = -0.80 z = 0.8 z = 0.88
T. L.
Pritesh R.
Recommended Textbooks
Elementary Statistics a Step by Step Approach
The Practice of Statistics for AP
Introductory Statistics
Transcript
18,000,000+
Students on Numerade
Trusted by students at 8,000+ universities
Watch the video solution with this free unlock.
EMAIL
PASSWORD