Twenty car salespeople were sampled to see how many cars they sold in a month; the following data was obtained: 25, 24, 27, 25, 20, 26, 28, 25, 24, 25, 22, 26, 24, 21, 26, 27, 21, 25, 28, 27 Construct a 85% confidence interval for the mean number of cars sold per month by the population of car salespeople. N P to Margine of Error. E We are 85% confident that, on average, car salespeople sell between cars and cars per month