A synthetic fiber used in manufacturing carpet has tensile strength that is normally distributed with mean 75.5 psi and standarddeviation 3.5 psi. How is the standard deviation of the sample mean changed when the sample size is increased from n = 12 ton = 48?Round all intermediate calculations to four decimal places (e.g. 12.3456) and round the final answer to three decimal places (e.g.98.768).The standard deviation is reducedby ipsi.

Let X denotes the tensile strength follows the normal distribution with the mean μ = 75.5 psi and…

Answered: A synthetic fiber used in manufacturing…

Advanced Engineering Mathematics

10th Edition

ISBN:9780470458365

Author:Erwin Kreyszig

Publisher:Erwin Kreyszig

Chapter2: Second-order Linear Odes

Section: Chapter Questions

Problem 1RQ

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