A tree farm growing specialist acacia trees wishes to better understand the timber yield they get from harvesting the trees. A random sample of 23 trees are harvested and their yields are recorded. This appears in the table below. NB In this question, if you use Excel functions you should list the functions you used. If you use an analysis tool add-in you should cut and paste the output into your answer, and if you use and "old school" approach you should quote the relevant formulae. Tree number Age, A Yield, Y ( Years) (cubic meters) 9.5 24.2 10.4 29.2 7.2 18.2 8.9 32.5 10.5 31.2 11.3 30.5 6.7 8.3 9.2 31 8.4 23.3 10. 31.2 23.8 36.2 29.1 11. 23 35.8 16 15 7.4 17.1 18 26.9 19 8.6 28.1 20 8 22.6 21 8.2 28.1 22 9.7 34.4 23 9.6 34.8 EA = 209.3, EY = 614.5, ZA = 1947.57, ZY