View previous attempt Check my work The weight of a small Starbucks coffee is a normally distributed random variable with a mean of 420 grams and a standard deviation of 24 grams. Find the weight that corresponds to each event. (Use Excel or Appendix C to calculate the z-value. Round your final answers to 2 decimal places.) a. Highest 20 percent b. Middle 60 percent to C. Highest 80 percent d. Lowest 15 percent sk Print References 7 of 8 :1 Next > rev