#14

13. Suppose that the weights of packages of lettuce coming off a packaging line have a normal distribution with mean 8.2 ounces and standard deviation 0.16 ounces. If every package is labeled 8 ounces, what percent of the packages weigh less than the labeled amount? Choose the closest answer from the options below. (a * 10% (b) 20% (C 25% (d) 5% (e) 15% z = (8-8.2)/0.16 = -1.25, and the proportion less than this is about 10%. 14. Using the information in Question 13 above, what is the first quartile of the distribution of the weights of packages of lettuce coming off this packaging line? Choose the closest answer from the options below