INTRODUCTION TO STATISTICS & DATA ANALYS
6th Edition
ISBN: 9780357420447
Author: PECK
Publisher: CENGAGE L
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Chapter 5, Problem 85E
Suppose 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
- a. Make a
scatterplot of the proportions of mosquitoes killed versus the pesticide concentration. - b. Using the techniques introduced in this section, calculate y′=ln(p1−p) for each of the concentrations and fit the line y′ = a + b (Concentration). What is the significance of a positive slope for this line?
- c. The point at which the dose kills 50% of the mosquitoes is sometimes called LD50, for “Lethal dose 50%.” What would you estimate LD50 to be for this pesticide when used on mosquitoes?
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Chapter 5 Solutions
INTRODUCTION TO STATISTICS & DATA ANALYS
Ch. 5.1 - For each of the scatterplots shown, answer the...Ch. 5.1 - For each of the following pairs of variables,...Ch. 5.1 - For each of the following pairs of variables,...Ch. 5.1 - For each of the following pairs of variables,...Ch. 5.1 - Is the following statement correct? Explain why or...Ch. 5.1 - Draw a scatterplot for which r = 1.Ch. 5.1 - Draw a scatterplot for which r = 1.Ch. 5.1 - Each year J.D. Power and Associates surveys new...Ch. 5.1 - The accompanying data are x = Cost (cents per...Ch. 5.1 - The authors of the paper Flat-footedness Is Not a...
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