Statistical Reasoning for Everyday Life (5th Edition)

5th Edition

ISBN: 9780134494043

Author: Jeff Bennett, William L. Briggs, Mario F. Triola

Publisher: PEARSON

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Chapter 8.2, Problem 15E

Margins of Error and Confidence Intervals. For Exercises 13–16, assume that population means are to be estimated from the samples described. In each case, use the sample results to approximate the margin of error and 95% confidence interval.

15. n = 36, x ¯ = 60.9 seconds , s = 4.3 seconds

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Chapter 8.2, Problem 14E

Chapter 8.2, Problem 16E

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Chapter 8 Solutions

Statistical Reasoning for Everyday Life (5th Edition)

Ch. 8.1 - Sampling Distribution. Distinguish between a...Ch. 8.1 - Sampling Error. What is a sampling error? How does...Ch. 8.1 - Sample Means and Proportions. What is a sample...Ch. 8.1 - Sample Size. How does the sample size affect how...Ch. 8.1 - Does It Make Sense? For Exercises 58, determine...Ch. 8.1 - Does It Make Sense? For Exercises 58, determine...Ch. 8.1 - Does It Make Sense? For Exercises 58, determine...Ch. 8.1 - Does It Make Sense? For Exercises 58, determine...Ch. 8.1 - Notation. In Exercises 912, identify the notation...Ch. 8.1 - Notation. In Exercises 912, identify the notation...

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Margins of Error and Confidence Intervals. For Exercises 13–16, assume that population means are to be estimated from the samples described. In each case, use the sample results to approximate the margin of error and 95% confidence interval. 15. n = 36, x ¯ = 60.9 seconds , s = 4.3 seconds

Solution Summary: The author explains the margin of error and the 95% confidence interval for the sample results.

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