Four types of solar energy collectors were collected. The data is in the accompanying file.
(a) Construct an ANOVA table.
(b) Can you conclude that the mean power differs for different collectors?
| A |
B |
C |
D |
| 1.9 |
1.7 |
1.2 |
1.5 |
| 1.6 |
1.9 |
0.9 |
1 |
| 2 |
1.8 |
1.2 |
1.4 |
| 1.8 |
1.7 |
0.9 |
1.3 |
| 1.6 |
1.7 |
1.4 |
1.4 |