One of eight bear species in the world

Assignment Help Other Subject
Reference no: EM131128182

American Black Bears The American black bear (Ursus americanus) is one of eight bear species in the world. It is the smallest North American bear and the most common bear species on the planet. In 1969, Dr. Michael R. Pelton of the University of Tennessee initiated a long-term study of the population in Great Smoky Mountains National Park. One aspect of the study was to develop a model that could be used to predict a bear's weight (since it is not practical to weigh bears in the field). One variable that is thought to be related to weight is the length of the bear. The following data represent the lengths and weights of 12 American black bears.

Total Length (cm), x

Weight (kg), y

139.0

110

138.0

60

139.0

90

120.5

60

149.0

85

141.0

100

141.0

95

150.0

85

166.0

155

151.5

140

129.5

105

150.0

110

Use the results from Problem 20 in Section 4.2 to answer the following questions:

(a) Treating total length as the explanatory variable, x, determine the estimates of ß0 and ß1.

(b) Assuming the residuals are normally distributed, test whether a linear relation exists between total length and weight at the a = 0.05 level of significance.

(c) Assuming the residuals are normally distributed, construct a 95% confidence interval for the slope of the true least squares regression line.

(d) What is the mean weight of American black bears of length 146.0 cm?

Reference no: EM131128182

Will it offer you opportunities to advance

Does the career you want pay a salary that meets your needs? Will it offer you opportunities to advance? Are you comfortable sitting at a desk all day, or do you prefer to tra

Volunteer work of college students females and males

Volunteer Work of College Students Females and males alike from the general adult population volunteer an average of 4.2 hours per week. A random sample of 20 female college

Century national bank description

Read the description of the Century Bank data set and complete the tasks described in the steps provided. Submit both a Microsoft Word and a Microsoft Excel document that co

Find the probability that tomorrow

During a 69-year period, tornadoes killed 6755 people in the United States. Assume this rate holds true today and is constant throughout the year. Find the probability that

What conclusions can be drawn from your observations

What conclusions can be drawn from your observations? List your conclusions. What is the significance of the change in the approval formula from "good" to "very good" in Genes

Extension of an earlier study of the characteristics

This project was an extension of an earlier study of the characteristics of gang and non-gang Assault in Los Angeles. This study mainly investigating the relationship betwee

Describe the main effects of humanity fall into sin

Student responses should reflect critical consideration of the question and interaction with material from the Bible, the textbooks, and other related materials. The respon

How do you cope with your stressors

Refer directly to the textbook or another credible source and discuss the effects a person's response to a stressor and method of coping can have on his or her mental health

Reviews

Write a Review

 
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd