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MATLAB: An Introduction with Applications

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 lifespan of xenon metal halide arc-discharge bulbs for aircraft landing lights is normally distributed with a mean of 2,600 hours and a standard deviation of 550 hours.

(a) If a new ballast system shows a mean life of 3,143 hours in a test on a sample of 12 prototype new bulbs, would you conclude that the new lamp’s mean life exceeds the current mean life at α = 0.05?

- ○ No
- ○ Yes

(b) What is the *p*-value? (*Round your answer to 4 decimal places.*)

*p*-value: [______]

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