BIO205H5 Lecture Notes - Lecture 13: Standard Deviation, Invertebrate, Central Tendency
Document Summary
This experiment will examine the relationship between urbanization and animal abundance. There will be a greater abundance of animal species (vertebrate and invertebrate) in the natural habitat (grassland) than in the disturbed habitat. The results of this experiment were collected by calculating the mean of three groups scores of total vertebrate and invertebrate abundance across grassland and disturbed habitats (three scores for each independent variable in each habitat). The mean abundance of vertebrates (not including humans) within a grassland habitat was 111. 7, with a standard deviation of 83. 8. The mean abundance of vertebrate within a disturbed habitat was 17. 3 with a variance of 22. 2. The same three groups of data were used for invertebrate measures. The tables below illustrate a summary of the relationship between each variable being tested. This experiment used a t-test to calculate statistical significance for each measure. A t- test compared the animal abundance between habitats and formulated a p-value based on significant difference between groups.
