Homework

A biologist has been monitoring the population of wolfs and caribou for several years in Denali National Park, Alaska.

Let x represents the caribou population (in hundreds) and y the wolf population in the park.

x = 30 34 27 25 17 23 20 y = 66 79 70 60 48 55 60

  1. Make a scatter plot of the data, adjust aesthetics so the figure follows publication guidelines.

  2. What is the equation that defines the linear relationship between wolfs and caribou.

  3. What is the wolf population when there are not caribou.

  4. What is the increase wolf population for each hundred caribou.

  5. What will be the expected wolf population, at say 1000 caribou?. any caution on this prediction?

  6. Is that a strong relationship?. what evidence can you provide?

  7. Was it significant, what evidence can you provide?. also what does is mean significant?

Place the figure and your responses in a Word document and email it as a homework. Send a nice looking document.