The weight of a small Starbucks coffee is a normally distributed random variable with a mean of 385 grams and a standard deviation of 8 grams. Find the weight that corresponds to each event.(Use Excel or Appendix C to calculate thez-value. Round your final answers to 2 decimal places.)

a. highest 30 percent _____

b. middle 70 percent _____ to ____

c. highest 90 percent ____

d. lowest 20 percent ____