Surgical complications: A medical researcher wants to construct an 80% confidence interval for the proportion of knee replacement surgeries that result in complications. Part 1 of 2 (a) An article in a medical journal suggested that approximately 9% of such operations result in complications. Using this estimate, what sample size is needed so that the confidence interval will have a margin of error of 0.03? A sample of 150 operations is needed to obtain an 80% confidence interval with a margin of error of 0.03 using the estimate 0.09 for p. Part: 1 / 2 Part 2 of 2 (b) Estimate the sample size needed if no estimate of p is available. A sample of operations is needed to obtain an 80% confidence interval with a margin of error of 0.03 when no estimate of p is available.

Surgical complications: A medical researcher wants to construct an 80% confidence interval for the proportion of knee replacement surgeries that result in complications. Part 1 of 2 (a) An article in a medical journal suggested that approximately 9% of such operations result in complications. Using this estimate, what sample size is needed so that the confidence interval will have a margin of error of 0.03? A sample of 150 operations is needed to obtain an 80% confidence interval with a margin of error of 0.03 using the estimate 0.09 for p. Part: 1 / 2 Part 2 of 2 (b) Estimate the sample size needed if no estimate of p is available. A sample of operations is needed to obtain an 80% confidence interval with a margin of error of 0.03 when no estimate of p is available.

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?

See similar textbooks