Answered: Assume that a sample is used to…

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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Assume that a sample is used to estimate a population mean μμ. Find the 95% confidence interval for a sample of size 865 with a mean of 53.4 and a standard deviation of 14.8. Enter your answers accurate to three decimal places.

Confidence Interval

Expert Solution

Step 1

From the given information,

Consider, the provided data is as given below:

$S a m p l e s i z e (n) = 865 S a m p l e m e a n (x) = 53.4 S a m p l e s \tan d a r d d e v i a t i o n (s) = 14.8 α = 0.05$

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