A survey conducted in year 2021 suggested that 210 out of 300 (70 percent) of university studentsworked in the summer of 2021. A similar survey is planned for year 2022. Researchers believe thatthe 70 percent fraction will remain unchanged. They wish to construct a 90 percent confidenceinterval for the difference in proportions and wish to ensure a margin of error at 5 percent. Find therequired sample size for the 2022 survey.

The confidence level is 90%, population proportion is 70%, and margin of error is 5%.

Answered: A survey conducted in year 2021…

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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