In: Statistics and Probability
Is the number of games won by a major league baseball team in a season related to the team batting average? The table below shows the number of games won and the batting average (in thousandths) of 8 teams.
Team | Games Won | Batting Average |
1 | 7474 | 272272 |
2 | 7676 | 283283 |
3 | 9898 | 268268 |
4 | 106106 | 269269 |
5 | 7878 | 266266 |
6 | 117117 | 278278 |
7 | 7474 | 272272 |
8 | 108108 | 270270 |
Using games won as the explanatory variable xx, do the
following:
(a) The correlation coefficient is r=r= .
(b) The equation of the least squares line is ŷ =