Concept explainers
The Health and Wellness.
Answer to Problem 101E
The estimate reasonable
Explanation of Solution
Given information: From 2000 through 2011, the numbers of new cases of a waterborne disease in a small city increased in a pattern that was approximately linear (see figure). Find the least squares regression line
for the data shown in the figure by solving the following system using matrices. Let
Use the result to predict the number of new cases of the waterborne disease in 2014. Is the estimate reasonable? Explain.
Calculation: The system of equations is,
The augmented matrix of above system of equations,
Now apply Gauss-Jordan elimination method.
Substitute the values of variables in
Hence the least square regression model is,
New cases of the waterborne disease in 2014
Here
Hence New cases of the waterborne disease in 2014 is
The estimate reasonable
Chapter 8 Solutions
EBK PRECALCULUS W/LIMITS
- Calculus: Early TranscendentalsCalculusISBN:9781285741550Author:James StewartPublisher:Cengage LearningThomas' Calculus (14th Edition)CalculusISBN:9780134438986Author:Joel R. Hass, Christopher E. Heil, Maurice D. WeirPublisher:PEARSONCalculus: Early Transcendentals (3rd Edition)CalculusISBN:9780134763644Author:William L. Briggs, Lyle Cochran, Bernard Gillett, Eric SchulzPublisher:PEARSON
- Calculus: Early TranscendentalsCalculusISBN:9781319050740Author:Jon Rogawski, Colin Adams, Robert FranzosaPublisher:W. H. FreemanCalculus: Early Transcendental FunctionsCalculusISBN:9781337552516Author:Ron Larson, Bruce H. EdwardsPublisher:Cengage Learning