Homework Help: Math

Posted by Kathy on Sunday, January 2, 2011 at 1:36pm.

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-score of +2.00.

Obtain the z-score and T-score for EACH student. Show your calculations. Who did better on the test? How many standard deviation units is each score from the mean? Compare the results of the three students.

Statistics - PsyDAG, Monday, January 3, 2011 at 10:26am
T = 50 + 10Z

Z = your score in terms of standard deviations.

With this information, you should be able to answer the questions.

Answer this Question

Related Questions

Stasistic - On a test whose distribution is approximately normal with a mean of ...
math - Students were given an exam with 300 multiple-choice questions. The ...
Statistics - Students were given an exam with 300 multiple-choice questions. The...
statistics - An SRS of size n is taken from a large population whose ...
MATH - Which of the following normal distributions has the smallest spread? A. A...
math - Suppose a test of musical ability has a normal distribution with a mean ...
math - Statistics: Analyze student exam scores Students were given an exam with ...
Math - I have a problem on standard deviation, and I will need some help with it...
Math (Statistic) - Considered the sampling distribution of a sample mean ...
statistics - The Survey of Study Habits and Attitudes (SSHA) is a psychological ...

For Further Reading

First Name:
School Subject:
Answer: