To test the effect of alcohol in increasing the reaction time to respond to a given stimulus, the reaction times of seven people were measured. After consuming 89 mL of 40% alcohol, the reaction time for each of the seven people was measured again. Do the following data indicate that the mean reaction time after consuming alcohol was greater than the mean reaction time before consuming alcohol? Use α = 0.05. (Use Mbefore - Mafter = Md. Round your answers to three decimal places.) Person 1 Before 3 After 8 1-2. Null and alternative hypotheses: Ho: Hd < 0 versusμ> 0 Ho: Hd #0 versus μ = 0 O Ho: Hd O Ho: Md = 0 versus t< Hd 3. Test statistic: t = #0 = 0 versus μd>0 Ho: Hd = 0 versus μ< 0 2 5 9 3 6 4 4 5 5 5 3 5 6 7 6 1 5 5 4. Rejection region: If the test is one-tailed, enter NONE for the unused region. t> 5. Conclusion: Ho is not rejected. There is sufficient evidence to indicate that the mean reaction time is greater after consuming alcohol. Ho is rejected. There is sufficient evidence to indicate that the mean reaction time is greater after consuming alcohol. O Ho is not rejected. There is insufficient evidence to indicate that the mean reaction time is greater after consuming alcohol. Ho is rejected. There is insufficient evidence to indicate that the mean reaction time is greater after consuming alcohol.
To test the effect of alcohol in increasing the reaction time to respond to a given stimulus, the reaction times of seven people were measured. After consuming 89 mL of 40% alcohol, the reaction time for each of the seven people was measured again. Do the following data indicate that the mean reaction time after consuming alcohol was greater than the mean reaction time before consuming alcohol? Use α = 0.05. (Use Mbefore - Mafter = Md. Round your answers to three decimal places.) Person 1 Before 3 After 8 1-2. Null and alternative hypotheses: Ho: Hd < 0 versusμ> 0 Ho: Hd #0 versus μ = 0 O Ho: Hd O Ho: Md = 0 versus t< Hd 3. Test statistic: t = #0 = 0 versus μd>0 Ho: Hd = 0 versus μ< 0 2 5 9 3 6 4 4 5 5 5 3 5 6 7 6 1 5 5 4. Rejection region: If the test is one-tailed, enter NONE for the unused region. t> 5. Conclusion: Ho is not rejected. There is sufficient evidence to indicate that the mean reaction time is greater after consuming alcohol. Ho is rejected. There is sufficient evidence to indicate that the mean reaction time is greater after consuming alcohol. O Ho is not rejected. There is insufficient evidence to indicate that the mean reaction time is greater after consuming alcohol. Ho is rejected. There is insufficient evidence to indicate that the mean reaction time is greater after consuming alcohol.
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
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Transcribed Image Text:To test the effect of alcohol in increasing the reaction time to respond to a given stimulus, the reaction times of seven people were
measured. After consuming 89 mL of 40% alcohol, the reaction time for each of the seven people was measured again. Do the
following data indicate that the mean reaction time after consuming alcohol was greater than the mean reaction time before
consuming alcohol? Use α = 0.05. (Use before - Mafter = Md. Round your answers to three decimal places.)
Person
1 2
Before
3
5
After
8
9
1-2. Null and alternative hypotheses:
O Ho: Md <0 versusμ> 0
Ho: Md #0 versus μ = 0
Ho: Md = 0 versus μ = 0
Ho: Md = 0 versus μ> 0
O Ho: Md = 0 versus μ < 0
3. Test statistic: t =
3 4
5
5
t<
6
4
6
5
3
6
1
5 5 5
7
4. Rejection region: If the test is one-tailed, enter NONE for the unused region.
t>
5. Conclusion:
Ho is not rejected. There is sufficient evidence to indicate that the mean reaction time is greater after consuming alcohol.
Ho is rejected. There is sufficient evidence to indicate that the mean reaction time is greater after consuming alcohol.
O Ho is not rejected. There is insufficient evidence to indicate that the mean reaction time is greater after consuming alcohol.
O Ho is rejected. There is insufficient evidence to indicate that the mean reaction time is greater after consuming alcohol.
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