8. In a selective breeding program for fast growing pine trees, you want to collect seed from the tallest 10% of trees in a plantation. The height distribution of this population has a mean J=70 ft, with o=5 ft. How tall must a tree be to be selected? a. Based on the information above, I scale the X-axis of the Normal distribution curve for tree height. b. Using the Empirical Rule as a guide, shade the area under the curve for the range of tree height values that corresponds to the tallest 10% of trees. c. Use the Standard Normal Table to determine the Z-value corresponds to the probability PIZZ = 0.10 Fill-in the blank. Your answer should be consistent with the left boundary of the area you shaded under the curve above. d. Given the information in parts (a) to (c), what range of tree height values should be used to select the tallest 10% of trees? Re-arrange Z = (x -p) / o to solve for x given the value of Z, u, and o above. Show your calculations