Question 1
A scientist is hoping to compare the mean levels of DDT toxin found in three species of fish in a local river. He randomly samples 50 of each species to use in the analysis. For each fish, he measures the amount of DDT toxin present. Ideally he will be able to rank the species based on the mean level of toxin found in each of the three species. How many factors are present in this study?
◦ 3
◦ 1
◦ 50
◦ 6
Question 2
A scientist is hoping to compare the mean levels of DDT toxin found in three species of fish in a local river. He randomly samples 50 of each species to use in the analysis. For each fish, he measures the amount of DDT toxin present. Ideally he will be able to rank the species based on the mean level of toxin found in each of the three species. Identify the treatments for this study.
◦ The amount of DDT in a fish
◦ The three fish species
◦ The scientist
◦ The 50 fish
Cartilaginous fish
The frequency of competition according to the number of species involved.
Fish
Species-rich Sonoran Desert landscape.
Three of the color variants found at Fossil Rim Wildlife Center in Texas
Different types of fog found throughout the United States