Question: An experiment was conducted to test the effects of alcohol
An experiment was conducted to test the effects of alcohol. Researchers measured the breath alcohol levels for a treatment group of people who drank ethanol and another group given a placebo. The results are given below. Use a 0.05 significance level to test the claim that the two sample groups come from populations with the same mean. The given results are based on data from “Effects of Alcohol Intoxication on Risk Taking, Strategy, and Error Rate in Visuomotor Performance,” by Streufert, et al., Journal of Applied Psychology, Vol. 77, No. 4.
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