A cable company claims that 88% of its customers are fully satisfied with their service. A competitor, who believes the figure to be far lower conducts an independent survey of 350 of the company's customers and finds that 287 are fully satisfied. Using the competitor's survey data, a 95% confidence interval for the proportion of all of the company's customers that are fully satisfied would be O (0.77,0.87) O (0.78, 0.86) O (0.74, 0.90) O (0.79,0.85)

A cable company claims that 88% of its customers are fully satisfied with their service. A competitor, who believes the figure to be far lower conducts an independent survey of 350 of the company's customers and finds that 287 are fully satisfied. Using the competitor's survey data, a 95% confidence interval for the proportion of all of the company's customers that are fully satisfied would be O (0.77,0.87) O (0.78, 0.86) O (0.74, 0.90) O (0.79,0.85)

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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