Using a Z-Score to Describe an Individual's Performance

Explain the general rationale behind using a z-score for describing how an individual performed on an exam compared to just stating the overall mean and the individual's score. How does the information differ in the two situations? What additional information are you gaining with a z-score?

Imagine you are in charge of reviewing applications for your academic institution. As a preliminary measure, you want to review only the top 25% of applicants on the basis of standardized test scores. How does calculating the z-score provide additional information regarding how each subject did overall? Provide specific examples of how you would use the information and interpret the scores.

Solution Summary

This solution is comprised of a detailed explanation of standard normal distribution or z score by hand calculation. In this solution, step-by-step explanation of this complicated topic provides students with a clear perspective of standard normal distribution to find the Z-scores using hand calculation.

Describe how assessment of personality, work behaviors, and job performance are related. Explain the key aspects that HR professionals must be aware of in each of these areas.
500 words in length and include an introduction, a body, and a conclusion.

On a test whose distribution is approximately normal with a mean of 50 and a standard deviation of 10, the results for three students were reported as follows:
Student Opie has a T-score of 60.
Student Paul has a z-score of -1.00.
Student Quincy has a z-

See attached chart. Your assistance is greatly appreciated. Thank you.
TASK
You have been provided the z-scores of three individuals.
1. Person A received a z-score of 1.0.
2. Person B received a z-score of 0
3. Person C received a z-score of -1.0.
Using Figure above (see attchement), indicate each individual's sco

Many psychological tests, such as the Wechsler Adult Scales of Intelligenceâ€”Fourth Revision, provide a composite score that is intended to represent a summary of multiple cognitive abilities. For the Wechsler Scales, this score is the "Full Scale Intellectual Quotient." Although this score is not technically a statistical mean

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With regards to a standard normal distribution complete the following:
(a) Find P(z < 0), the percentage of the standard normal distribution below the z-score of 0.
(b) Find P(z < 1.65), the percentage of the standard normal distribution below the z-score of 1.65
(c) Find P(-3 < z

A student scores 50 on a psychology exam and 83 on an economics exam. The psychology exam has a mean score of 60 and the standard deviation of 5. The economics exam has a mean score of 80 and a standard deviation of 10. Find the z-score for each test and decide which exam score is relatively better.
What is the z-score for th

1. For a sample with a mean of M=45, a score of X=59 corresponds to z=2.00. What is the sample standard deviation?
2. In a population of exam scores, a score of X=48 corresponds to z=+1.00 and a score of X=36 corresponds to z=-0.50. Find the mean and standard deviation for the population.
3. For each of the following popul

If your followers know they can perform required tasks and believe they will be rewarded for a good job but don't care for the rewards you can provide, describe their motivation with respect to expectancy theory.