Mathematics, 12.04.2021 18:50, karlyisaunicorn
An investigator wishes to determine whether alcohol consumption causes deterioration in the performance of automobile drivers. Before the driving test, subjects drank a glass of orange juice which, in the case of the treatment group, is laced with three ounces of vodka. Performance is measured by the number of errors made on a driving simulator. There were one hundred and sixty six volunteer subjects which were randomly assigned, in equal numbers, to the two groups. For subjects in the treatment group, the mean number of errors ( x1 ) equals 24 and the standard deviation ( s1 ) equals 17.5. For subjects in the control group, the mean number of errors ( x2 ) equals 20, and the standard deviation ( s2 ) equals 10.85. Test the claim that alcohol consumption causes deterioration in the performance of automobile drivers.
Answers: 1
Mathematics, 21.06.2019 14:00, lovelysoul4698
You and a friend race across a field to a fence and back. your friend has a 50-meter head start. the equations shown represent you and your friend's distances dd (in meters) from the fence tt seconds after the race begins. find the time at which you catch up to your friend. you: d=∣−5t+100∣d=∣−5t+100∣ your friend: d=∣−313t+50∣∣
Answers: 2
Mathematics, 21.06.2019 16:50, thegoat3180
The lines shown below are parallel. if the green line has a slope of -1, what is the slope of the red line?
Answers: 1
Mathematics, 21.06.2019 17:30, paiged2003
The jewelry store is having a sale. necklaces that were regularly priced at $23.50 are on sale for $18.80. what is the percentage of decrease in the price of necklaces?
Answers: 1
An investigator wishes to determine whether alcohol consumption causes deterioration in the performa...
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