In a study examining the effect of alcohol on reaction time, Liguori and Robinson (2001) found that even moderate alcohol consumption significantly slowed response time to an emergency situation in a driving simulation. In a similar study, researchers measured veaction time 30 minutes after participants consumed one 6-ounce glass of wine. Again, they used a stan- dardized driving simulation task for which the regular population averages u = 400 msec. The distribution of reaction times is approximately normal with o = 40. Assume that the researcher obtained a sample mean of M = 422 for the n = 25 participants in the study. a. Are the data sufficient to conclude that the alcohol has a significant effect on reaction time? Use a two-tailed test with a = .01. b. Do the data provide evidence that the alcohol significantly increased (slowed) reaction time? Use a one-tailed test with a = .01. %3D c. Compute Cohen's d to estimate the size of the effect.
In a study examining the effect of alcohol on reaction time, Liguori and Robinson (2001) found that even moderate alcohol consumption significantly slowed response time to an emergency situation in a driving simulation. In a similar study, researchers measured veaction time 30 minutes after participants consumed one 6-ounce glass of wine. Again, they used a stan- dardized driving simulation task for which the regular population averages u = 400 msec. The distribution of reaction times is approximately normal with o = 40. Assume that the researcher obtained a sample mean of M = 422 for the n = 25 participants in the study. a. Are the data sufficient to conclude that the alcohol has a significant effect on reaction time? Use a two-tailed test with a = .01. b. Do the data provide evidence that the alcohol significantly increased (slowed) reaction time? Use a one-tailed test with a = .01. %3D c. Compute Cohen's d to estimate the size of the effect.
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
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Author:Carter
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Chapter4: Equations Of Linear Functions
Section4.5: Correlation And Causation
Problem 2CYU
Related questions
Question
![tailed test
14. In a study examining the effect of alcohol on reaction
reaction time 30 minutes after participants consumed
simulation. In a similar study, researchers measured
moderate alcohol consumption significantly slowed
one 6-ounce glass of wine. Again, they used a stan-
response time to an emergency situation in a driving
time, Liguori and Robinson (2001) found that even
moderate alcohol consumption significantly slowed
time to an emergency situation in a driving
response
simulation. In a similar study, researchers measured
reaction time 30 minutes after participants consumed
one 6-ounce glass of wine. Again, they used a stan-
dardized driving simulation task for which the regular
population averages u = 400 msec. The distribution of
reaction times is approximately normal with o = 40.
A ssume that the researcher obtained a sample mean of
M = 422 for the n = 25 participants in the study.
a. Are the data sufficient to conclude that the alcohol
has a significant effect on reaction time? Use a
two-tailed test with a =.01.
b. Do the data provide evidence that the alcohol
significantly increased (slowed) reaction time? Use
a one-tailed test with a = .01.
%3D
c. Compute Cohen's d to estimate the size of the
effect.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F6e29c477-4d74-4cf4-b2f7-556f8fe8855a%2Fee693f25-0b65-4566-b7c4-7fede6b0ebb0%2Fdydvst_processed.jpeg&w=3840&q=75)
Transcribed Image Text:tailed test
14. In a study examining the effect of alcohol on reaction
reaction time 30 minutes after participants consumed
simulation. In a similar study, researchers measured
moderate alcohol consumption significantly slowed
one 6-ounce glass of wine. Again, they used a stan-
response time to an emergency situation in a driving
time, Liguori and Robinson (2001) found that even
moderate alcohol consumption significantly slowed
time to an emergency situation in a driving
response
simulation. In a similar study, researchers measured
reaction time 30 minutes after participants consumed
one 6-ounce glass of wine. Again, they used a stan-
dardized driving simulation task for which the regular
population averages u = 400 msec. The distribution of
reaction times is approximately normal with o = 40.
A ssume that the researcher obtained a sample mean of
M = 422 for the n = 25 participants in the study.
a. Are the data sufficient to conclude that the alcohol
has a significant effect on reaction time? Use a
two-tailed test with a =.01.
b. Do the data provide evidence that the alcohol
significantly increased (slowed) reaction time? Use
a one-tailed test with a = .01.
%3D
c. Compute Cohen's d to estimate the size of the
effect.
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