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%?

College Algebra (MindTap Course List)

12th Edition

ISBN:9781305652231

Author:R. David Gustafson, Jeff Hughes

Publisher:R. David Gustafson, Jeff Hughes

Chapter8: Sequences, Series, And Probability

Section8.7: Probability

Problem 58E: What is meant by the sample space of an experiment?

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