An experiment is conducted on the effect of alcohol on perceptual motor ability.
ID: 2948010 • Letter: A
Question
An experiment is conducted on the effect of alcohol on perceptual motor ability. Thirty subjects are each tested twice, once after having two drinks and once aft having two glasses of water. The two tests were on two different days to aive the alcoiol a chance to wear off. Half of the subjects were given alcohol first and h were given water first. The scores of the 30 subjects are recorded. Higher scores reflect better performance. What type of hypothesis test wouldou e performing for this tyope of eperiment? Two sample Z test Paired T-test Two Sample T for Unequal VariancesExplanation / Answer
Correct option:
Two sample t for unequal variances
EXPLANATION:
Here, we have 2 independent samples:
Sample 1:
Size = 15
Alcohol first, water afterwards
Sample 2:
Size = 15
Water first, alcohol afterwards
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