One of the factors that determine the degree of risk a pesticide poses to human

Question

One of the factors that determine the degree of risk a pesticide poses to human is the rate at which the pesticide is absorbed into skin after contact. an important question is whether the amount in the skin continues to increase with the length of the contact, or whether it increases for only a short time before leveling off. to investigate this, measured amounts of certain pesticide were applied to 20 samples of rat skin. Four skins were analyzed at each of the time intervals 1,2,3,4,10 and 24 hours. The amounts of the chemical that were in the skin are given in the following table. Duration amounts absorbed 1 1.7 1.5 1.2 1.5 2 1.8 1.6 1.8 1.9 4 1.9 1.7 2.1 2.0 10 2.3 1.9 1.7 1.5 24 2.1 2.2 2.5 2.3 a) construct an ANOVA table. you may give a range for the p value b) can you conclude that the mean strength differs with temperature?

Explanation / Answer

use this link

http://www.itl.nist.gov/div898/handbook/prc/section4/prc433.htm

examples from this

http://www.itl.nist.gov/div898/handbook/prc/section4/prc433.htm

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