In a sample of 120 people from the Quebec City area,it was found that 20% of them preferred the Canadiens to the Nordiques.a) Construct a confidence interval at the 95% confidence level to estimate the proportion of peoplein the Quebec City area who prefer the Canadiens to the Nordiques.b) What should be the sample size so that at a 90% confidence level the margin of error is 1%?

In a sample of 120 people from the Quebec City area,it was found that 20% of them preferred the Canadiens to the Nordiques.a) Construct a confidence interval at the 95% confidence level to estimate the proportion of peoplein the Quebec City area who prefer the Canadiens to the Nordiques.b) What should be the sample size so that at a 90% confidence level the margin of error is 1%?

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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