6 - Non-parametric and parametric tests I

Name: Date: Please answer the following questions on your own. If you have any trouble or questions, email me at djoakes@asu.edu, and I will be happy to help. Total number of points:120 (For questions 1-5) Below are the number of adults of Mexican Gray wolf ( Canis lupus ) counted in 15 sites in Arizona during June and December of 2010 (Temporal analysis – you can sample the same individual). 1 Create a boxplot of the distribution of these data. (Hint = use the stack function) (10 points) 2. Test whether the data are normally distributed. (10 points) 3. To compare the abundance values, should you use a t-test or a Wilcox test? Why? (10 points) 4. Should you use a paired or an independent test? (10 points) 5. Do the abundance of wolves in sites of Arizona differ (significantly)? (20 points) (For questions 6-10) Global maps of conservation priority areas. Such maps can help donors with global missions to allocate resources and can help citizens advocate for actions in priority areas . Conservation priority values (CP) are widely used to identify priority areas for conservation worldwide. CP range from 0 to 1. A collection of CP-highest sites will represent species efficiently. Below are the conservation values for 15 areas in two ecoregions ( They do not share species). 6 Create a boxplot of the distribution of the CP data. (Hint = use the stack function) (10 points) Assignment 6 ABS 350: Applied statistics Abundance of wolves Sites November July 1 210 94 2 112 83 3 130 105 4 119 121 5 125 102 6 131 92 7 155 115 8 119 111 9 111 106 10 112 124 11 118 119 12 123 111 13 142 132 14 113 111 15 111 112