STATISTICAL ANALYSIS (No long explanation needed. Rate will be given and write the complete solutions.) Choose the correct answer. CI on VarianceDefective alternator and corroded or loose battery charges are a few of the main causes of batterydegradation. A company producing automobile batteries is developing a prototype on their next productand that they claim their batteries will last on average, 3 years with a variance of 1 year. A random sampleof 5 prototype batteries were taken and in the course of the company's product development, havemeasured their lifetimes as 1.9, 2.4, 3.0, 3.5, and 4.2 years.Construct a 95% confidence interval for o' and decide if the company's claim that o = 1 is valid. Assumethe population of battery lives to be approximately normally distributed.O a. 0.29 < o? < 6.74. Because 95% confidence interval for o? is (0.29, 6.74), and 1 is in thatinterval, we can conclude that the company's claim that o? = 1 is validO b. 0.539 < o < 2.596. Because 95% confidence interval for o is (0.539, 2.596), and 1 is in thatinterval, we can conclude that the company's claim that o = 1 is validO. 0.34 < a? < 4.59. Because 95% confidence interval for o? is (0.34, 4.59), and the s² = 0.815is in that interval, we can conclude that the company's claim is validO d. 0.29 < a? < 6.74. 95% confidence interval for o? is (0.29, 6.74)

In order to find the confidence interval for σ2, R software is used.

Answered: STATISTICAL ANALYSIS (No long…

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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