11) Find the score that separates the top 80% from the bottom 20% if the Mean is 100 and the Standard deviation is 25
11) Find the score that separates the top 80% from the bottom 20% if the Mean is 100 and the Standard deviation is 25
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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Can someone help me on #11 please
![**Statistics Problems**
**Problem 11:**
Find the score that separates the top 80% from the bottom 20% if the mean is 100 and the standard deviation is 25.
**Problem 12:**
Find the sample size needed to find the population proportion if the margin of error is 5%, the confidence level is 99%, and the sample proportion is 0.39.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Ff6ad1cd7-e883-4155-acb4-5513247aaa08%2F13d2aed8-ec03-4ff1-8d79-290b94db4e20%2F1heo71_processed.jpeg&w=3840&q=75)
Transcribed Image Text:**Statistics Problems**
**Problem 11:**
Find the score that separates the top 80% from the bottom 20% if the mean is 100 and the standard deviation is 25.
**Problem 12:**
Find the sample size needed to find the population proportion if the margin of error is 5%, the confidence level is 99%, and the sample proportion is 0.39.
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