2. An engineer is investigating tire life for a product that uses a new compound. She andhas built 16 tires and tested them to end-of-life in a road test. The sample mean andstandard deviation are I = 60, 139.7 and s = 3645.94 kilometers.(a) Find a 95% confidence interval on mean tire life.(b) Can you conclude, using a = 0.05, that the standard deviation of tire life is lessthan 4000 kilometers? State any necessary assumptions about the underlyingdistribution of the data.(c) Find the p-value for the test you performed in part (b).

Given Data : Sample Size, n = 16.0 Sample Mean, x̄ = 60139.7…

Answered: r a product that uses a new compound…

r a product that uses a new compound end-of-life in a road test. The sample nd s = 3645.94 kilometers. n mean tire life. 5, that the standard deviation of tire y necessary assumptions about the u

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

2. An engineer is investigating tire life for a product that uses a new compound. She and
has built 16 tires and tested them to end-of-life in a road test. The sample mean and
standard deviation are I = 60, 139.7 and s = 3645.94 kilometers.
(a) Find a 95% confidence interval on mean tire life.
(b) Can you conclude, using a = 0.05, that the standard deviation of tire life is less
than 4000 kilometers? State any necessary assumptions about the underlying
distribution of the data.
(c) Find the p-value for the test you performed in part (b).

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