**Transcription for Educational Website****Scores Analysis with Mean and Standard Deviation**The analysis provides calculations of z-scores and the percentage of scores above a certain threshold, using the following statistical parameters:- Mean (average) of scores: 82- Standard Deviation: 5**Questions and Solutions:**6. **Find a z-score for x = 81 and x = 68** - *Z-score for 81*: -0.2 - *Z-score for 68*: -2.87. **Find the percent of scores that were above 86.** - Z-score for 86: _______ - Table score for 86: _______To solve these, students are expected to apply the standard z-score formula:\[ z = \frac{(x - \text{mean})}{\text{standard deviation}} \]Where \( x \) is the raw score, the mean is the average score (82), and the standard deviation is 5. The z-scores indicate how many standard deviations an element is from the mean.

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Answered: Scores had a Mean of 82 and a Standard…

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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Scores had a Mean of 82 and a Standard Deviation of 5 0. Find a z score for x =81 and x = 68 Z- score for 81 -0.2 z- score for 68 28 1. Find the percent of scores that were above 86. Z score for 86 Table score for 86