One of the Factors That Determines the Degree of Risk

question 27

Multiple Choice

One of the factors that determines the degree of risk a pesticide poses to human health is the rate at which it is absorbed into the 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 a certain pesticide were applied to 20 Samples of rat skin. Four skins were analyzed at each of the time intervals 1, 2, 4, 10, and 24 hours. The Amounts of the chemical (in micrograms) that were in the skin are given in the following table:
$\begin{array} { c c c c c } \text { Duration } & & & & \\1 & 1.2 & 1.5 & 1.3 & 1.7 \\2 & 1.1 & 1.4 & 1.2 & 1.6 \\4 & 1.4 & 1.4 & 1.2 & 1.7 \\10 & 1.6 & 1.7 & 1.5 & 2.0 \\24 & 1.7 & 1.8 & 1.8 & 1.9\end{array}$
Perform the Tukey-Kramer test to determine which pairs of means, if any, differ. Use the $a = 0.05$ level of Significance.

• A) \(\mu _ { 2 } \neq \mu _ { 10 }\)
• B) There is not enough evidence to conclude that any of the means differ.
• C) \(\mu _ { 2 } \neq \mu _ { 24 } , \mu _ { 2 } \neq \mu _ { 10 }\)
• D) \(\mu _ { 2 } \neq \mu _ { 24 }\)

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Definitions:

Discrepancy Function

The difference between existing and desired conditions, used to identify gaps in performance or outcomes that need addressing.

Observational Learning

Learning that occurs through observing the behavior of others and the outcomes of those behaviors.

Imitating Others

The action of copying the behaviors, actions, or traits of others, often as a method of learning or fitting into a group.

Reinforcing Others

The act of encouraging and supporting behaviors in others that contribute positively to desired outcomes or goals.