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:

Consumer Law

A statute or administrative rule serving to protect consumer interests.

Consumer Interests

The priorities and concerns of individuals in their role as consumers, focusing on the protection and promotion of their rights and well-being.

Consumer Product Safety Commission

The Consumer Product Safety Commission is a U.S. federal agency responsible for protecting the public from risks of injury or death associated with consumer products.

Voluntarily Issuing Recalls

The process by which a company initiates a recall of a product without being compelled to do so by a government agency or court, often due to the discovery of safety issues.