A study of a local high school tried to determine the mean amount of money that each student had saved. the study surveyed a random sample of 36 students in the high school and found a mean savings of 3800 dollars with a standard deviation of 500 dollars. at the 95% confidence level, use the normal distribution/empirical rule to estimate the margin of error for the mean, rounding to the nearest whole number. (do not write plus or minus±).