What Influences the Sample Size Needed? In this exercise, we examine the effect of the confidence level on determining the sample size needed. Find the sample size needed to give a margin of error within +2 with 99 % confidence. With 95 % confidence. = 30 as our estimate of the standard deviation in each case. With 90 % confidence. Assume that we use o Round your answers up to the nearest integer. 99 % : n = i 95 % : n = 90 % : n = i
What Influences the Sample Size Needed? In this exercise, we examine the effect of the confidence level on determining the sample size needed. Find the sample size needed to give a margin of error within +2 with 99 % confidence. With 95 % confidence. = 30 as our estimate of the standard deviation in each case. With 90 % confidence. Assume that we use o Round your answers up to the nearest integer. 99 % : n = i 95 % : n = 90 % : n = i
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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![**What Influences the Sample Size Needed?**
In this exercise, we examine the effect of the confidence level on determining the sample size needed.
Find the sample size needed to give a margin of error within ±2 with 99% confidence, 95% confidence, and 90% confidence. Assume that we use \( \tilde{\sigma} = 30 \) as our estimate of the standard deviation in each case.
Round your answers up to the nearest integer.
- **99%:** \( n = \) [input box]
- **95%:** \( n = \) [input box]
- **90%:** \( n = \) [input box]](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fc9a9f5cb-d1fc-4a82-bec4-88d0da9375a4%2Fb533f73d-80a6-48d0-a614-6c50ff1ec2ff%2Foxv7l38_processed.jpeg&w=3840&q=75)
Transcribed Image Text:**What Influences the Sample Size Needed?**
In this exercise, we examine the effect of the confidence level on determining the sample size needed.
Find the sample size needed to give a margin of error within ±2 with 99% confidence, 95% confidence, and 90% confidence. Assume that we use \( \tilde{\sigma} = 30 \) as our estimate of the standard deviation in each case.
Round your answers up to the nearest integer.
- **99%:** \( n = \) [input box]
- **95%:** \( n = \) [input box]
- **90%:** \( n = \) [input box]
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