The breaking strength of cables type A is known to follow a normal distribution. A random sampleof ten cables is tested resulting in the following yields:250 225 190 188 210 210 198 230 233 231Construct a 98% confidence interval on the true average breaking strength.i.ii.Construct a 95% confidence interval on the true variance breaking strength.iii.A random sample of 12 cables type B were tested and gave a mean breaking strength of231.3 with a standard deviation of 21.6805. Construct a 90% confidence interval on the ratioof variances of the breaking strength of type B and type A.

Use the Excel and calculate the Mean and Standard Deviation

Answered: The breaking strength of cables type A…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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The breaking strength of cables type A is known to follow a normal distribution. A random sample of ten cables is tested resulting in the following yields: 250 225 190 188 210 210 198 230 233 231 Construct a 98% confidence interval on the true average breaking strength. i.