_con-con&external_browser-0&launchUrl=https%253A%252F%252Fnewconnect.mheducation.com%252F#/acti... A rk: Chapter 7 (Sections 7.1 through 7.4) i Saved Help Save & Exit Submit Check my work The weight of a small Starbucks coffee is a normally distributed random variable with a mean of 400 grams and a standard deviation of 20 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 Next >