six randomly chosen volunteers participated in a study to examine the effects of alcohol on the response to auditory stimulus. the delay (in milliseconds) in response to a sound was measured before and after an intoxicating dose of alcohol. the resulting values are given below. you may assume that the difference in response times before and after alcohol are normally distributed.
Perform a hypotheses test to see if alcohol increases the delay in response. (Take a = 0.05] Measurement/Volunteer 1 2 3 4 5 6 Mean | SD Before alcohol 3.85 3.81 3.60 3.68 3.78 3.83 3.758 0.0979 After alcohol 3.82 3.95 3.80 3.87 3.88 3.94 3.877 0.0608 Difference -0.03 0.14 0.20 0.19 0.10 0.11 0.118 0.083