How much of variation is explained by the regression line

Assignment Help Applied Statistics

Reference no: EM13725792

Use the following data set that compares age to average "years left to live" to answer the following questions.
Age 10 20 30 40 50 60 70 80 90 100
Years to live 59.2 49.6 40.7 31.9 24.0 17.2 11.6 7.2 4 .4 2.8

a)Show the scatterplot for this data with the least squares regression line. Find R^2. HOw much of the variation is explained by the regression line?
b)Experiment with the non-linear regressions available on the calculator. Which seem to fit? Show the scatterplot with three different regression curves from the calculator. Label each equation, as well as the applicable R^2.
c)Choose a regression equation to predict how many "years left" a person has if he is now 101 years old. Can he count on celebrating Christmas 2015?

Reference no: EM13725792

Questions Cloud

How much privacy should people expect : How much privacy should people expect when using a social networking site or going online for information, shopping, or other tasks

Development of business ethics : Summarize the development of business ethics over the past several decades, including the rise of social issues in business.

Who have the grammar capabilities of a grader : Have a paper due by Saturday. WIll only consider people who don't write like imbeciles and those who have the grammar capabilities of a 3rd grader.

External environment-organizational size : Explain how the external environment, organizational size, technology, and strategy are relevant in the design of an organizational structure where you have worked (McShane & Von Glinow, 2013).

How much of variation is explained by the regression line : a)Show the scatterplot for this data with the least squares regression line. Find R^2. HOw much of the variation is explained by the regression line? b)Experiment with the non-linear regressions available on the calculator. Which seem to fit? S..

Specific ethical issues that general electric healthcare : Determine two (2) specific ethical issues that General Electric (GE) Healthcare faced when implementing its strategy to introduce low cost diagnostic equipment to developing countries. Recommend two (2) actions that GE can take to resolve these et..

What is the role of gender and politic in conquest of mexico : according to O'Connor what is the role of gender and politics in the conquest of Mexico? plz i need essay answering this question not plagiarized from anywhere it should be self writing and iwant it two pages

Prevent software upgrade problems : What precautions did the organizations in the case take to prevent software upgrade problems? To what extent do you believe those precautions helped?

Certain type of cultural activity : As a way of experiencing the Humanities beyond your classroom, computer, and textbook, you are asked to do a certain type of "cultural activity" that fits well with our course and then report on your experience.

User Account

All Pages