**Note**Your answers to the questions below should follow the expectations for homework found here. Due date is on the Dates page.

## Black Bear Weight

Measuring the live body weight of large-bodied animals can be impractical when equipment needed to weigh individuals is inadequate or unavailable. Thus, the objective of Bartareau (2017) was to develop a model to accurately estimate the live body weight of Black Bears *Ursus americanus floridanus* in Florida based on the relationship between body weight as determined by a scale and sex, morphometric measurements (e.g., body length and chest girth), and age predictor variables that are more easily obtained in the field. Bartareauâ€™s data are available in BlackBears.csv (download, meta). Use these data to determine if body weight can be predicted from body length for **non-cub** bears (i.e., older than one year of age). [*Note that you will need to filter the raw data.*] In doing so, answer the following questions.

- Perform a thorough analysis of assumptions.
- If needed, transform the data to meet the assumptions. Describe your process and show that the assumptions are adequately met on the new scale. [
*Note: I strongly urge you to first consider a transformation that is most often used with data such as these that tend to follow a power function relationship.*] - Describe whether a significant relationship exists between the two variables.
- If a significant relationship exists between the two variables, then carefully (and thoroughly) describe that relationship. [
*Make sure to include a plot that illustrates your description.*] - Demonstrate how your model can be used to predict the weight for a non-cub bear given its length (you can choose the length). [
*Note: Make sure to interpret the interval on the scale of interest to the researchers.*]