3. The lumen output was determined for each of I
3 different brands of 60-watt soft-white lightbulbs, with J
8 bulbs of each brand tested. The sums of squares were computed as SSE
4773.3 and SSTr
591.2. State the hypotheses of interest (including word definitions of parameters), and use the F test of ANOVA (
.05) to decide whether there are any differences in true average lumen outputs among the three brands for this type of bulb by obtaining as much information as possible about the P-value.