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A sample of 55 research cotton samples resulted in a sample average percentage elongation of 8.17 and a sample standard deviation of 1.43. Calculate a 95% large-sample CI for the true average percentage elongation µ. (Round your answers to three decimal places.) 7.894 8.445 |× ) What assumptions are you making about the distribution of percentage elongation? O We assume the distribution of percentage elongation is normal with the value of o known. O We assume the distribution of percentage elongation is uniform. O We assume the distribution of percentage elongation is normal with the value of o unknown. O We make no assumptions about the distribution of percentage elongation.

A sample of 55 research cotton samples resulted in a sample average percentage elongation of 8.17 and a sample standard deviation of 1.43. Calculate a 95% large-sample CI for the true average percentage elongation µ. (Round your answers to three decimal places.) 7.894 8.445 |× ) What assumptions are you making about the distribution of percentage elongation? O We assume the distribution of percentage elongation is normal with the value of o known. O We assume the distribution of percentage elongation is uniform. O We assume the distribution of percentage elongation is normal with the value of o unknown. O We make no assumptions about the distribution of percentage elongation.

A First Course in Probability (10th Edition)
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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A sample of 55 research cotton samples resulted in a sample average percentage elongation of 8.17 and a sample standard deviation of 1.43. Calculate a 95% large-sample CI for the true average percentage elongation u. (Round your answers to three decimal places.) ) 7.894 8.445 What assumptions are you making about the distribution of percentage elongation? We assume the distribution of percentage elongation is normal with the value of o known. We assume the distribution of percentage elongation is uniform. We assume the distribution of percentage elongation is normal with the value of o unknown. We make no assumptions about the distribution of percentage elongation. You may need to use the appropriate table in the Appendix of Tables to answer this question. O O
Transcribed Image Text:A sample of 55 research cotton samples resulted in a sample average percentage elongation of 8.17 and a sample standard deviation of 1.43. Calculate a 95% large-sample CI for the true average percentage elongation u. (Round your answers to three decimal places.) ) 7.894 8.445 What assumptions are you making about the distribution of percentage elongation? We assume the distribution of percentage elongation is normal with the value of o known. We assume the distribution of percentage elongation is uniform. We assume the distribution of percentage elongation is normal with the value of o unknown. We make no assumptions about the distribution of percentage elongation. You may need to use the appropriate table in the Appendix of Tables to answer this question. O O
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