GEOG 3900 Spatial Analysis
Spring 2001
due April 16
You are working with a research crew that is looking at worm farmers on either side of a fishing resort. Worm production was measured, with the following results:
Producer |
region | production stats (kg./ha.day) |
Billy Bob's |
North | 6 7 6 6 5 4 |
| Bobby Lou's | North | 5 5 6 7 3 4 |
| Mobli's Tavern | South | 6 6 6 7 6 5 |
| Delaney's | South | 5 5 4 3 2 5 |
| Phineas Franklin and Freddy | South | 6 6 6 3 6 6 |
| Emert Poultry Sub. | North | 3 3 3 7 3 5 |
| Heatherford Downs | North | 2 5 8 9 22 5 |
In the previous assignment, you tested whether one side of the lake was more productive than the other. Now, you are asked to use analysis of variance (ANOVA) to test whether the producers are different from each other. As always, state your test hypothesis, show your calculations (ANOVA table), show your test statistic, and state your conclusions.
In assignment 7, you used a parametric comparison of samples to find whether the producers on the north and the south were different from each other. One of the fundamental assumptions of that test was that the data were normally distributed.
Now, you are asked to test this assumption. Test the data on the north and south sides, and test each separately as to whether they are consistent with a normal distribution.
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