Answered: Calculate the 95% confidence interval…

Calculate the 95% confidence interval and record the lower and upper limits from the following: Mean= 24.74 Standard Deviation= 14.37 Sample Size= 20

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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Question

Calculate the 95% confidence interval and record the lower and upper limits from the following: Mean= 24.74 Standard Deviation= 14.37 Sample Size= 20

Definition Definition Number of subjects or observations included in a study. A large sample size typically provides more reliable results and better representation of the population. As sample size and width of confidence interval are inversely related, if the sample size is increased, the width of the confidence interval decreases.

Expert Solution

Step 1: Determine the given information

The given sample mean, $\bar{x} = 24.74$ .

The sample standard deviation, $s = 14.37$ .

The sample size, $n = 20$ .

The confidence level is $95 %$ .

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