![subject](/tpl/images/cats/mat.png)
Mathematics, 03.06.2021 20:00 Need1ng
To test whether consuming alcohol impairs driving ability, the DMV conducted the following experiment. Seven volunteers were asked to drive through an obstacle course prior to consuming any alcohol and again after drinking two drinks. Driving ability was measured by recording the total reaction time (in seconds) of a driver in avoiding the various obstacles on the course. The data are given below. At the 3% level of significance, is it true that consumption of two drinks impairs driving ability. Assume differences between reaction times before and after are normally distributed.
Driver #1 #2 #3 #4 #5 #6 #7
Reaction time without akchal (Before) 8.82 6.62 9.84 10.81 9.20 11.67 4.42
Reation tme with alcohol (Ater) 1 10.61 8.18 12.24 13.45 8.88 10.88
Difference (After- Before) 5.38 1.79 1.56 2.4 2.64 -0.32 0.96
Required:
a. State the null and alternative hypotheses.
b. Calculate the sample mean and standard deviation of difference in reaction time.
![ansver](/tpl/images/cats/User.png)
Answers: 3
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Another question on Mathematics
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 18:30
Haruka hiked several kilometers in the morning. she hiked only 66 kilometers in the afternoon, which was 25% less than she had hiked in the morning. how many kilometers did haruka hike in all?
Answers: 1
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 21:00
Jordan got 27 out of 90 correct on his test . what fraction of the marks did her get correct
Answers: 2
![question](/tpl/images/cats/mat.png)
Mathematics, 22.06.2019 00:30
Round each of the decimals to the nearest hundredth a. 0.596 b. 4.245 c. 53.6843 d. 17.999
Answers: 2
You know the right answer?
To test whether consuming alcohol impairs driving ability, the DMV conducted the following experimen...
Questions
![question](/tpl/images/cats/istoriya.png)
History, 14.11.2019 13:31
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 14.11.2019 13:31
![question](/tpl/images/cats/mat.png)
Mathematics, 14.11.2019 13:31
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/istoriya.png)
History, 14.11.2019 13:31
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 14.11.2019 13:31
![question](/tpl/images/cats/mat.png)
Mathematics, 14.11.2019 13:31
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/istoriya.png)
History, 14.11.2019 13:31
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 14.11.2019 13:31
![question](/tpl/images/cats/mat.png)
Mathematics, 14.11.2019 13:31
![question](/tpl/images/cats/istoriya.png)
History, 14.11.2019 13:31
![question](/tpl/images/cats/geografiya.png)
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/biologiya.png)
Biology, 14.11.2019 13:31