A sample of 9 female college students consumes an average of 9 liters of alcohol per month, with a sample standard deviation of 3.3 liters. You can safely assume that the population of monthly alcohol...

A sample of 9 female college students consumes an average of 9 liters of alcohol per month, with a sample standard deviation of 3.3 liters. You can safely assume that the population of monthly alcohol consumption is Normally distributed. What is the margin of error for a 95% Confidence Interval for the mean? (Leave your answer to two decimal places, ex: 18.12)