5.43 Chicken diet and weight, Part III: In Exercises 5.31 and 5.33 we compared the effects of two types of feed at a time. A better analysis would first consider all feed types at once: casein, horsebean, linseed, meat meal, soybean, and sunflower. The ANOVA output below can be used to test for differences between the average weights of chicks on different diets.
DF | Sum Sq | Mean Sq | F value | Pr(>F) | |
---|---|---|---|---|---|
feed | 5 | 231129.16 | 46225.83 | 15.36 | 0.0000 |
residuals | 65 | 195556.02 | 3008.55 |

Mean | SD | n | |
---|---|---|---|
casein | 323.58 | 64.43 | 12 |
horsebean | 160.2 | 38.63 | 10 |
linseed | 218.75 | 52.24 | 12 |
meatmeal | 276.91 | 64.9 | 11 |
soybean | 246.43 | 54.13 | 1 |
sunflower | 328.92 | 48.84 | 12 |
What are the hypotheses for this test?
The test statistic for the hypothesis test is: (please round to two decimal places)
The p-value for the hypothesis test is: (please round to four decimal places)
Interpret the result of the hypothesis test in the context of the study: