7.3 Syme and Pollard (E3) conducted an experiment to investigate the effect of different motivation levels on measures of food-getting dominance in the laboratory rat. The data shown in Table 7.10 are the amounts of food in grams eaten by eight male hooded rats fol- lowing 0, 24, and 72 hours of food deprivation. Do these data provide sufficient evidence to indicate a difference in the effects of the three levels of food deprivation? Find the P value.