A researcher would like to know the proportion of the households that has a cable subscription. She gathered data from 90 households and found that 19 of them are cable subscribers. At a confidence level of 90 percent, determine the following: a. the sample proportion, ?̂ (p-hat) b. the ?̂ (q) c. the confidence interval of true proportion, p d. what should be the sample size if the margin of error E is to be 5%?

A researcher would like to know the proportion of the households that has a cable subscription. She gathered data from 90 households and found that 19 of them are cable subscribers. At a confidence level of 90 percent, determine the following: a. the sample proportion, ?̂ (p-hat) b. the ?̂ (q) c. the confidence interval of true proportion, p d. what should be the sample size if the margin of error E is to be 5%?

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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