Afarmer believes that the yields of his tomato plants have a normal distribution with an average yield of 11 lbs and a standard deviation of 2.1 lbs. the farmer would like to identify the plants which yield the highest 5% in weight and save them for breeding purposes. what yielded weight separates the top 5% of the crop from the rest? use the information above and the z table to find the z score that you will use in this problem.