Question 19A machine produces metal rods used in an automobile suspension system. A random sample of 15 rods is selected, and the diameter is measured. The resulting data (in millimetres) are as follows:8.248.258.208.238.248.218.268.268.208.258.238.238.198.288.24 Construct a 95% confidence interval on variance rod diameter. A.(0.0003 , 0.0016) B.(0.0136 , 0.0629) C.(0.0003 , 0.0014) D.(0.0129 , 0.0566)

Suppose Xi be the ith rod diameter, i=1, 2, ...15. Assume that, X follows Normal distribution with…

Answered: A machine produces metal rods used in…

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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Question 19

A machine produces metal rods used in an automobile suspension system. A random sample of 15 rods is selected, and the diameter is measured. The resulting data (in millimetres) are as follows:

8.24	8.25	8.20	8.23	8.24
8.21	8.26	8.26	8.20	8.25
8.23	8.23	8.19	8.28	8.24

Construct a 95% confidence interval on variance rod diameter.

	A.	(0.0003 , 0.0016)
	B.	(0.0136 , 0.0629)
	C.	(0.0003 , 0.0014)
	D.	(0.0129 , 0.0566)

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