In a recent poll of 1200 randomly selected adult office workers, 32% said they had worn a Halloween costume to the office at least once. What is the margin of error, using a 95% confidence level, for estimating the true population (percentage) of adult office workers who have worn a Halloween costume to the office at least once? What is the 95% confidence interval for the proportion of all adult office workers who have worn a Halloween costume to the office at least once?
In a recent poll of 1200 randomly selected adult office workers, 32% said they had worn a Halloween costume to the office at least once. What is the margin of error, using a 95% confidence level, for estimating the true population (percentage) of adult office workers who have worn a Halloween costume to the office at least once? What is the 95% confidence interval for the proportion of all adult office workers who have worn a Halloween costume to the office at least once?
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.6: Summarizing Categorical Data
Problem 30PPS
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In a recent poll of 1200 randomly selected adult office workers, 32% said they had worn a Halloween costume to the office at least once.
- What is the margin of error, using a 95% confidence level, for estimating the true population (percentage) of adult office workers who have worn a Halloween costume to the office at least once?
- What is the 95% confidence interval for the proportion of all adult office workers who have worn a Halloween costume to the office at least once?
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