Recent Posts • Latest Topics • Unanswered Questions

Maple trees A forester would like to know how big a maple tree might be at age 50 years. She gathers ...

meganA

wrote...

Go to Answer

Posts: 448

Rep:

4 years ago

Maple trees A forester would like to know how big a maple tree might be at age 50 years. She gathers ...

Maple trees A forester would like to know how big a maple tree might be at age 50 years. She gathers data from some trees that have been cut down, and plots the diameters (in inches) of the trees against their ages (in years). First she makes a linear model. The scatterplot and residuals plot are shown.

a. Describe the association shown in the scatterplot.
b. Do you think the linear model is appropriate? Explain.
c. If she uses this model to try to predict the diameter of a 50-year old maple tree, would you expect that estimate to be fairly accurate, too low, or too high? Explain.

Now she re-expresses the data, using the logarithm of age to try to predict the diameter of the tree. Here are the regression analysis and the residuals plot.

d. Explain why you think this is a better model.
e. Using this model, predict the diameter of a maple tree at age 50 years.

Textbook

Stats: Modeling the World

Edition: 4^th

Authors: Bock, Velleman, De Veaux

Read 105 times

1 Reply

Report

Replies

Answer verified by a subject expert

rinderbik

wrote...

Posts: 391

Rep:

4 years ago

More solutions for this book are available here

This verified answer contains over 570 words.

Report

Related Topics

meganA Author

wrote...

4 years ago

I appreciate what you did here, answered it right Smiling Face with Open Mouth

Kstan109

wrote...

Yesterday

This helped my grade so much Perfect

wrote...

2 hours ago

Thanks

New Topic

Quick Reply

Explore

Post your homework questions and get free online help from our incredible volunteers

1146 People Browsing

102 Signed Up Today

Start New Topic Take the Tour CoursesNew Study Tools Topics Trending Browse by Textbook

Live Chat

Related Images

644

1611

714

Your Opinion

Previous poll results: Who will win the 2024 president election?

It's sore throat season, why does my mucus have red spots?

Bonobos, Chimpanzees, and the 98% DNA Link

Courses by Biology Forums

Strange Ingredients Lurking in Doritos Chips

The Toxic Skin and Fungi Defense

Ready to ask a question on Biology Forums? Try it out

Join Our Community

Biology Forums - Study Force is a free online homework help service catered towards college and high school students. Get homework help and answers to your toughest questions in biology, chemistry, physics, mathematics, engineering, accounting, business, humanities, and more. Master your assignments quickly with thousands of step-by-step solutions to countless textbook questions asked and answered by our members. If we don't have your question, don't worry. You can ask any homework question and get expert homework help in as little as two hours.

Our extensive online study community is made up of college and high school students, teachers, professors, parents and subject enthusiasts who contribute to our vast collection of study resources: textbook solutions, study guides, practice tests, practice problems, lecture notes, equation sheets and more. With our help, your homework will never be the same!

Join for free today

How is Biology Forums - Study Force different than tutoring?

Home Search Q & A Board Gallery Resource Library Blog Dictionary Chat	Quick Links Start a Topic Latest Topics Unanswered Questions Courses Study Tools Browse by Textbook	Social Facebook YouTube Community Stats Who's Online Trending Staff	Help About Us Take the Tour Study Tips Posting Guidelines Terms and Policies Contact Us
Biology Forums - Study Force © 2010-2024 \| Powered by SMF \| SMF © 2015, Simple Machines \| Sitemap Biology-Forums.com is not affiliated with any publisher. Book covers, title and author names appear for reference only.