A consumer watch group interviewed a random sample of 1000 consumers and asked them if they are optimistic about the economy or not. There were 612 who said Yes. a. Use 95% confidence level to estimate the population proportions. What is the margin of error E? b. Use 95% confidence level to estimate the population proportions. What is the upper limit?

A consumer watch group interviewed a random sample of 1000 consumers and asked them if they are optimistic about the economy or not. There were 612 who said Yes. a. Use 95% confidence level to estimate the population proportions. What is the margin of error E? b. Use 95% confidence level to estimate the population proportions. What is the upper limit?

Holt Mcdougal Larson Pre-algebra: Student Edition 2012

1st Edition

ISBN:9780547587776

Author:HOLT MCDOUGAL

Publisher:HOLT MCDOUGAL

Chapter11: Data Analysis And Probability

Section11.4: Collecting Data

Problem 3E

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