Two hundred and eighty boys completed a test that measures the distance that the subject can walk
Question:
Two hundred and eighty boys completed a test that measures the distance that the subject can walk on a flat, hard surface in 6 minutes. For each age group shown in the table, the median distance walked by the boys in that age group is also given.
Age Group | Representative | Median Six-Minute |
3–5 | 4 | 545.3 |
6–8 | 7 | 583.0 |
9–11 | 10 | 667.3 |
12–15 | 13.5 | 701.1 |
16–18 | 17 | 727.6 |
(a) Find the equation of the least-squares regression line that describes the relationship between median distances walked in 6 minutes and representative age. (Round your values to three decimal places.) =
(b) Compute the five residuals. (Round your answers to three decimal places.)
Representative | Residual |
4 | |
7 | |
10 | |
13.5 | |
17 | |
Elementary Statistics
ISBN: 978-0538733502
11th edition
Authors: Robert R. Johnson, Patricia J. Kuby