Concept explainers
Remainder Round all answers to two decimal places unless otherwise indicated.
Driving You are driving on a highway. The following table gives your speed
Time
|
0 | 15 | 30 | 45 | 60 |
Speed
|
54 | 59 | 63 | 66 | 68 |
a. Find the equation of the regression that expresses
b. Explain in practical terms the meaning of the slope of the regression line.
c. On the basis of the regression line model, when do you predict that your speed will reach 70 miles per hour? (Round your answer to the nearest second.)
d. Plot the data points and the regression line.
e. Use your plot in part d to answer the following: Is your prediction in part c likely to give a time earlier or later than the actual time when y our speed reaches 70 miles per hour?
Want to see the full answer?
Check out a sample textbook solutionChapter 3 Solutions
Functions and Change: A Modeling Approach to College Algebra (MindTap Course List)
- Functions and Change: A Modeling Approach to Coll...AlgebraISBN:9781337111348Author:Bruce Crauder, Benny Evans, Alan NoellPublisher:Cengage LearningCollege Algebra (MindTap Course List)AlgebraISBN:9781305652231Author:R. David Gustafson, Jeff HughesPublisher:Cengage LearningCollege AlgebraAlgebraISBN:9781305115545Author:James Stewart, Lothar Redlin, Saleem WatsonPublisher:Cengage Learning
- Glencoe Algebra 1, Student Edition, 9780079039897...AlgebraISBN:9780079039897Author:CarterPublisher:McGraw HillCalculus For The Life SciencesCalculusISBN:9780321964038Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.Publisher:Pearson Addison Wesley,Algebra and Trigonometry (MindTap Course List)AlgebraISBN:9781305071742Author:James Stewart, Lothar Redlin, Saleem WatsonPublisher:Cengage Learning