Researchers conducted an experiment to test the effects of

Last updated: 1/6/2023

Researchers conducted an experiment to test the effects of alcohol Errors were recorded in a test of visual and motor skills for a treatment group of 21 people who drank ethanol and another group of 21 people given a placebo The errors for the treatment group have a standard deviation of 2 30 and the errors for the placebo group have a standard deviation of 0 85 Assume that the two populations are normally distributed Use a 0 05 significance level to test the claim that both groups have the same amount of variation among the errors Let sample 1 be the sample with the larger sample variance and let sample 2 be the sample with the smaller sample variance What are the null and alternative hypotheses A Ho 0 0 2 H 0 0 OC Ho 0 0 2 H 0 0 OB Ho o 0 2 H 0 0 OD Ho 0 0 2 H 0 0 2