Going to work: A news report slated that the mean distance that commuters in the United Slates havel each way to work is 18 miles. Assume the standard deviation is 9 miles. A sample of 75 commuters is chosen. (a) What is the probability that the sample mean commute distance is greater than 17 miles? Round the answer to at least four decimal places. The probability that the sample mean commute distance is greater than 17' miles is E]. Part: 1 / 2 Part 2 of 2 (b) What is the probability that the sample mean commute distance is between 19 and 21 miles? Round the answer to at least four decimal places. The probability that the sample mean commute distance is between 19 and 21 miles is