What would be the Null hypothesis, alternative hypothesis, and the linear model for the experiment below? In a laboratory experiment examining the fecundity of fruit flies, data were collected on the fecundity of females in relation to the density of flies in the culture as flies/cm2. Five females were tested at each density setting and the number of eggs per female per day obtained. In a laboratory experiment examining the fecundity of fruit flies, data were collected on the fecundity of females in relation to the density of flies in the culture as flies/cm2. Five females were tested at each density setting and the number of eggs per female per day obtained..