Shade the desired section under the Standard Normal curve. Where the scores are greater than 86 -1 percent Z score Find the percent of scores that were above 86. 8. Find the percent of scores between 68 and 81 percent -2 -1 percent -1 Z score Z score 9. Find the percent of scores between 87 and 98
Shade the desired section under the Standard Normal curve. Where the scores are greater than 86 -1 percent Z score Find the percent of scores that were above 86. 8. Find the percent of scores between 68 and 81 percent -2 -1 percent -1 Z score Z score 9. Find the percent of scores between 87 and 98
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Question
Please disregard questions 6 and 7.
Find the percent of scores that were above 86
Find the percent of scores between 68 and 81.
Find the percent of scores between 87 and 98.

Transcribed Image Text:### Statistical Analysis of Scores
**Scores had a Mean of 82 and a Standard Deviation of 5**
#### 6. Z-Score Calculations
- **Find a z-score for x = 81 and x = 68**
- Z-score for 81: __________
- Z-score for 68: __________
#### 7. Calculating Percentages Above a Score
- **Find the percent of scores that were above 86.**
- Z-score for 86: __________
- Table score for 86: __________
**Diagram Explanation:**
- A standard normal distribution curve is shown. You are asked to shade the area under the curve where scores are greater than 86. This area represents the percentage of scores above 86.
- Find the percent of scores that were above 86: __________
#### 8. Calculating Percentages Between Two Scores
- **Find the percent of scores between 68 and 81.**
**Diagrams Explanation:**
- Two standard normal distribution curves are shown, indicating the areas you should consider:
1. The area between z-scores representing 68 and 81 on the first graph.
2. Percent: __________
#### 9. Calculating Percentages Between Other Scores
- **Find the percent of scores between 87 and 98.**
- Percent: __________
This exercise involves applying the formula for z-scores and using a standard normal distribution table to find the corresponding areas under the curve, which represent percentages.
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