Question

The weight of a small Starbucks coffee is a normally distributed random variable with a mean of 415 grams and a standard deviation of 23 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

Answer 1