This Table Shows Incidence Rates (Per 100,000) of Groups Exposed

question 1

Multiple Choice

This table shows incidence rates (per 100,000) of groups exposed to neither risk factors or to one or two risk factors for lung cancer.What is the expected value of incidence rate X on asbestos exposure group among smokers in additive scale? Incidence Rates of Lung Cancer by Asbestos and Smoking Exposure Status
$$\begin{array}{r}\text { Smoking status }\quad\\\text { Asbestos exposure }\begin{array} {|l|l|l|} \hline& \text { Yes } \quad \quad& \text { No }\quad\quad \\\hline \text { Yes (regular exercise) } & 2.0 & 2.6 \\\hline \text { No (no exercise) } & 4.0 & x\\\hline\end{array}\end{array}$$

• A) 4.0
• B) 6.0
• C) 8.0
• D) 12.0
• E) 24.0

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Definitions:

Interaction

In statistics, an occurrence when the effect of one variable depends on the level of another variable.

Main Effects

Refers to the direct impact of independent variables on dependent variables in a statistical model, without considering interactions between variables.

Total Mean

The overall average value of a dataset, calculated by summing all observations and dividing by the total number of observations.

Alternative Hypothesis

A hypothesis that proposes a statistical relationship between variables, opposite to the null hypothesis suggesting no relationship.