The image contains handwritten notes for a statistical calculation to determine the sample size needed for a study. The notes are as follows:- \( p = 0.28 \): This represents the estimated proportion from previous data or pilot study.- \( Z_{α/2} = 2.326 \): This is the Z-value corresponding to the desired confidence level in a standard normal distribution.- \( m = 0.03 \): This represents the margin of error the study is willing to accept.The question "What sample size is needed" is labeled and followed by the formula to calculate the sample size:\[ n = \frac{0.28(1-0.28)(2.326)^2}{(0.03)^2} \]This formula is used to calculate the minimum sample size required to estimate a population proportion with a specified margin of error at a given confidence level.

Given that p^ = 0.28 , Zα/2 = 2.326 , m = 0.03

Answered: 1 P = 0.28 Za/2=2.321 m = 0.03 What…

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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1 P = 0.28 Za/2=2.321 m = 0.03 What sample size is needed. 2 12 = 0.28(1-0.28) (²2.326) 0.03