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Description: Researchers examined the effect of caffeine on response time in the driving simulator. For the general population, the distribution of reaction times is normal with the mean of μ = 400 msec. and the standard deviation of σ = 40. They asked a sample o

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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Researchers examined the effect of caffeine on response time in the driving simulator. For the general population, the distribution of reaction times is normal with the mean of μ = 400 msec. and the standard deviation of σ = 40. They asked a sample of 49 drivers and asked them to consume one 6-ounce cup of coffee. The sample mean was ?̅=392 msec.. Conduct a hypothesis test and state your conclusion. Does caffeine have an effect on reaction time while driving? Use alpha = .05 (two-tails)

1.Type the null and research hypotheses in complete sentences.

2.Cut off points

3.Standard error and z-score -show your computation process

4.Your conclusion thoroughly.

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