User: | Open Learning Faculty Member:
The data I collected was the number of trees with and without ivy in a 5 m radius. Each block, A through E, had five replicates. It was difficult deciding what sort of statistics to conduct on the data. I wanted to keep it straightforward and focused on the abundance of ivy on trees within the radius and then broaden out to look at each block as a whole. I believe looking at the relative frequency of the presence/absence of ivy will achieve this. Since the blocks vary in size it could potentially be helpful to standardize the frequency somehow between the blocks.
| Table 2
Summary of data collected. The first letter delineates the block and the following number the replicate. |
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| Point Radius (5m) | # of Trees with Ivy | # of Trees without Ivy | Total # of Trees in Radius | Relative Frequency with Ivy | Relative Frequency without Ivy | |
| A.1 | 7 | 4 | 11 | 0.6364 | 0.3636 | |
| A.2 | 1 | 5 | 6 | 0.1667 | 0.8333 | |
| A.3 | 2 | 3 | 5 | 0.4000 | 0.6000 | |
| A.4 | 5 | 1 | 6 | 0.8333 | 0.1667 | |
| A.5 | 5 | 5 | 10 | 0.5000 | 0.5000 | |
| ATotal | 20 | 18 | 38 | 0.5263 | 0.4737 | |
| B.1 | 2 | 9 | 11 | 0.1818 | 0.8182 | |
| B.2 | 0 | 8 | 8 | 0.0000 | 1.0000 | |
| B.3 | 1 | 3 | 4 | 0.2500 | 0.7500 | |
| B.4 | 1 | 5 | 6 | 0.1667 | 0.8333 | |
| B.5 | 4 | 4 | 8 | 0.5000 | 0.5000 | |
| BTotal | 8 | 29 | 37 | 0.2162 | 0.7838 | |
| C.1 | 5 | 3 | 8 | 0.6250 | 0.3750 | |
| C.2 | 0 | 1 | 1 | 0.0000 | 1.0000 | |
| C.3 | 4 | 3 | 7 | 0.5714 | 0.4286 | |
| C.4 | 1 | 5 | 6 | 0.1667 | 0.8333 | |
| C.5 | 1 | 4 | 5 | 0.2000 | 0.8000 | |
| CTotal | 11 | 16 | 27 | 0.4074 | 0.5926 | |
| D.1 | 2 | 4 | 6 | 0.3333 | 0.6667 | |
| D.2 | 1 | 5 | 6 | 0.1667 | 0.8333 | |
| D.3 | 4 | 4 | 8 | 0.5000 | 0.5000 | |
| D.4 | 2 | 4 | 6 | 0.3333 | 0.6667 | |
| D.5 | 5 | 3 | 8 | 0.6250 | 0.3750 | |
| DTotal | 14 | 20 | 34 | 0.4118 | 0.5882 | |
| E.1 | 1 | 4 | 5 | 0.2000 | 0.8000 | |
| E.2 | 0 | 3 | 3 | 0.0000 | 1.0000 | |
| E.3 | 3 | 5 | 8 | 0.3750 | 0.6250 | |
| E.4 | 1 | 5 | 6 | 0.1667 | 0.8333 | |
| E.5 | 5 | 2 | 7 | 0.7143 | 0.2857 | |
| ETotal | 10 | 19 | 29 | 0.3448 | 0.6552 | |
| BlockTotal | 63 | 102 | 165 | 0.3818 | 0.6182 | |
