The hypothetical data below are from a toxicity study designed to measure the effectiveness of different doses
Question:
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.
a. Make a scatterplot of the proportions of mosquitoes killed versus the pesticide concentration.
b. Using the techniques introduced in this section, calculate for each of the concentrations and fit the line y =a + b(Concentration). What is the sig nifi cance of a positive slope for this line?
c. The point at which the dose kills 50% of the pests is sometimes called LD50, for “Lethal dose 50%.” What would you estimate to be LD50 for this pesticide when used on mosquitoes?
Step by Step Answer:
Statistics The Exploration & Analysis Of Data
ISBN: 9780840058010
7th Edition
Authors: Roxy Peck, Jay L. Devore