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.

DFSum SqMean SqF valuePr(>F)
feed5231129.1646225.8315.360.0000
residuals65195556.023008.55
Conduct a hypothesis test to determine if these data provide convincing evidence that the average weight of chicks varies across some (or all) groups. Make sure to check relevant conditions. Figures and summary statistics are shown below.
SbS Boxplot
MeanSDn
casein323.5864.4312
horsebean160.238.6310
linseed218.7552.2412
meatmeal276.9164.911
soybean246.4354.131
sunflower328.9248.8412


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: