Basics Practice

Adapted from the forthcoming CyberStats introductory statistics course.

Practice Material for 'The Basics'

Use the standard normal curve calculator to answer the parts of question 1.

Z Score	Prob<Z

1. What is the probability that a z-score is less than 1.65 ?

2. What is the percentile rank for Z = - 2?

3. What z-score has Prob<Z = 0.001?

4. What z-score is the 80th percentile of the standard normal curve?

5. For women, the mean pulse rate is 76 beats per minute and the standard deviation is 8. What's the standard score for a pulse rate of 94?
The formula to use is

6. What's the standard score for a pulse rate of 60?

6. What pulse rate is one standard deviation above the mean?

7. What pulse rate has a Z score equal to -0.5 ?

8. Define the phrase "standardized score".