# Question: This exercise requires the use of a computer package The

This exercise requires the use of a computer package. The paper “Habitat Selection by Black Bears in an Intensively Logged Boreal Forrest” (Canadian Journal of Zoology [2008]: 1307–1316) gave the accompanying data on n 5 11 female black bears.

a. Fit a multiple regression model to describe the relationship between y 5 home-range size and the predictors x1 5 age and x2 5 weight.

b. Construct a normal probability plot of the 11 standardized residuals. Based on the plot, does it seem reasonable to regard the random deviation distribution as approximately normal? Explain.

c. If appropriate, carry out a model utility test with a significance level of .05 to determine if the predictors age and weight are useful for predicting home range size.

a. Fit a multiple regression model to describe the relationship between y 5 home-range size and the predictors x1 5 age and x2 5 weight.

b. Construct a normal probability plot of the 11 standardized residuals. Based on the plot, does it seem reasonable to regard the random deviation distribution as approximately normal? Explain.

c. If appropriate, carry out a model utility test with a significance level of .05 to determine if the predictors age and weight are useful for predicting home range size.

## Answer to relevant Questions

The ability of ecologists to identify regions of greatest species richness could have an impact on the preservation of genetic diversity, a major objective of the World Conservation Strategy. The article “Prediction of ...The article “Movement and Habitat Use by Lake Whitefish During Spawning in a Boreal Lake: Integrating Acoustic Telemetry and Geographic Information Systems” (Transactions of the American Fisheries Society [1999]: ...Suppose that a multiple regression data set consists of n = 15 observations. For what values of k, the number of model predictors, would the corresponding model with R2 = .90 be judged useful at significance level .05? Does ...a. Assume that this is the correct equation. What is the mean value of y when x1 = 10, x2 = .5, x3 = 50, and x4 = 100? b. What mean error percentage is associated with a backlight level of 20, character subtense of .5, ...The paper referenced in the previous exercise also gave the following underscoring pattern for men. a. Write a few sentences interpreting this underscoring pattern. b. Using your answers from Part (a) and from the previous ...Post your question