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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 51 research cotton samples resulted in a sample average percentage elongation of 8.19 and a sample standard deviation of 1.45. Calculate a 95% large-sample CI for the true average percentage elongation u. (Round your answers to three decimal places.)
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 make no assumptions about the distribution of percentage elongation.
O we assume the distribution of percentage elongation is normal with the value of o unknown.
O we assume the distribution of percentage elongation is uniform.
Transcribed Image Text:A sample of 51 research cotton samples resulted in a sample average percentage elongation of 8.19 and a sample standard deviation of 1.45. Calculate a 95% large-sample CI for the true average percentage elongation u. (Round your answers to three decimal places.) 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 make no assumptions about the distribution of percentage elongation. O we assume the distribution of percentage elongation is normal with the value of o unknown. O we assume the distribution of percentage elongation is uniform.
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