The effects of alcohol intake on aggressive driving were studied on a group of s
ID: 3179355 • Letter: T
Question
The effects of alcohol intake on aggressive driving were studied on a group of students tested on a driving simulator. The researcher hypothesized that students would drive more poorly after having alcohol than after the placebo. In the placebo condition, the participants received an ounce of apple juice 30 minutes before the driving simulation test. In the alcohol condition, participants received an ounce of vodka 30 minutes test before the driving simulation test. The students were assigned to drink the placebo on the first day's simulation and the alcohol on the second day's simulation, or to drink the alcohol on the first day and the placebo on the second day. The number of crashes was measured for the 5-minute driving simulation on both days. Who are the two samples? Are the samples independent or dependent? What was measured? Determine a directional research hypothesis. Write it out in words and symbols. Determine the null hypothesis. Write it out in words and symbols.Explanation / Answer
Solution:-
8) The two samples are some students who recieved an ounces of apple juice 30 minutes before driving simulation test and other sample of students who got an ounces of vodka 30 minutes before driving simulation test.
9) The two samples are independent becuase placebo and treatment was done with different set of students.
10) The number of crashes was measured for the 5 minutes driving simulation on both the days of testing.
11) The hypothesis is one directional because according to our claim we have to test that whether the participant who are given alchohol are involved in more accidents as compared to participants who are given apple juice.
12)
Alcohol = Number of accidents by alcohol participants
Apple juice = Number of accidents by apple juice participants
State the hypotheses. The first step is to state the null hypothesis and an alternative hypothesis.
Null hypothesis: Alcohol< Apple juice
Alternative hypothesis: Alcohol > Apple juice
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