A philanthropic organization sent free mailing labels and greeting cards to a random sample of 100,000 potential donors on their mailing list and received 4722 donations. A) Give a 90% confidence interval for the true proportion of those from their entire mailing list who may donate. B) A staff member thinks that the true rate is 4.9%. Given the confidence interval you found, do you find the right plausible?

A philanthropic organization sent free mailing labels and greeting cards to a random sample of 100,000 potential donors on their mailing list and received 4722 donations. A) Give a 90% confidence interval for the true proportion of those from their entire mailing list who may donate. B) A staff member thinks that the true rate is 4.9%. Given the confidence interval you found, do you find the right plausible?

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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