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How large a sample should be selected to provide a 95% confidence interval with a margin of error of 10? Assume that the population standard deviation is 40. Use excel please

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

How large a sample should be selected to provide a 95% confidence interval with a margin of error of 10? Assume that the population standard deviation is 40.

Use excel please

Expert Solution

Step 1

The following information has been provided:

The confidence level is 95%.

The margin of Error is $E = 10$ .

The population standard deviation is $σ = 40$ .

We need to compute the sample size $(n)$ .

Step by step

Solved in 3 steps with 1 images

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