=+5.64 ● The hypothetical data below are from a toxicity study designed to measure the effectiveness of different doses of a pesticide on mosquitoes. The table below summarizes the concentration of the pesticide, the sample sizes, and the number of critters dispatched.

Concentration (g/cc) 0.10 0.15 0.20 0.30 0.50 0.70 0.95 Number of mosquitoes 48 52 56 51 47 53 51 Number killed 10 13 25 31 39 51 49 y¿ 5 a 1 b y¿ 5 ln a p

1 2 p b