Answered: For ? = 25 independent observations…

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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For ? = 25 independent observations from a normal population whose true
mean μ and true standard deviation σ are both unknown:

4. What can you say about the level of the confidence interval with margin
m=0.25?
5. How many extra observations will you need in order to construct a level
95% confidence interval with margin m=0.25?
6. What formulæ will you use to construct your confidence interval, if you do
get the necessary extra data?

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