Answered: Find the margin of error for a poll,…

Find the margin of error for a poll, assuming that 95% confidence level and π = 0.3. n = 1,800 (Round your answer to 4 decimal places.)

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

1) Find the margin of error for a poll, assuming that 95% confidence level and π = 0.3.

n = 1,800 (Round your answer to 4 decimal places.)

2) Of 57 bank customers depositing a check, 25 received some cash back.

Construct a 90 percent confidence interval for the proportion of all depositors who ask for cash back. (Round your answers to 4 decimal places.)

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