Assessing Goose Depredation on Grain and Seed Yields

*Part II: Section A*
	*Using GIS Technology*

4.3 Tables

Maps provide a visualization of spatial data, but they can fall short when used to summarize the attribute data and analysis results. Tables are an excellent device for summarizing the attribute information contained within the maps (Figures IIA-37 and IIA-38).

Figure IIA-37: Summary table of yield data for a wheat field.

0	Exclosure	No to Light Grazing	Moderate Grazing	Heavy Grazing	Water Impact
# of Observations	85	2454	6831	2435	464
Yield (g/m2)	513	483	452	374	303
STDV	82	63	54	86	823

Figure IIA-38: Results of a paired t-test for a wheat field.

t-Test: Paired Two Assuming Equal Variances
0	*Exclosures*	*No April/Light March Grazing*
Mean	12182.24112	430.23704569
Variance	12182.24112	9164.037935
Observations	96	1679
Pooled Variance	9325.75779	0
Hypothesized Mean Difference	0	0
df	1773	0
t Stat	9.548361188	0
P(T<=t) one-tail	2.09803E -21	00
t Critical one-tail	1.645712473	0
P(T<=t) two-tail	4.19606E -21	0
t Critical two-tail	1.961302587	0

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1. Introduction
2. Data Collection
3. Data Analysis
4. Findings/Summary
- 4.1 Maps
- 4.2 Charts
- 4.3 Tables