Perform a Test for Independence
-A Medical Researcher Is Interested $\chi ^ { 2 }$

question 34

Multiple Choice

Perform a Test for Independence
-A medical researcher is interested in determining if there is a relationship between adults over 50 who exercise regularly and low, moderate, and high blood pressure. A random sample of 236 adults over 50 is selected and the results are given below. Calculate the chi-square test statistic $\chi ^ { 2 }$ to test the claim that regular exercise and low, moderate, and high blood pressure are independent. Use $\alpha = 0.01$ .
$\begin{array}{l|ccc}\text { Blood Pressure } & \text { Low } & \text { Moderate } & \text { High } \\\hline \text { Reg. Exercise } & 35 & 62 & 25 \\\text { No Reg. Exercise } & 21 & 65 & 28\end{array}$

• A) \(3.473\)
• B) \(16.183\)
• C) \(18.112\)
• D) \(6.003\)

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Definitions:

Capital Budgeting

The process of making investment decisions in long-term assets and projects.

Analyzing

The process of examining data or information to understand and interpret patterns, trends, or relationships.

Factory Overhead

The indirect costs associated with manufacturing, which include expenses such as utilities, maintenance, and depreciation of equipment.

Depreciation

The process of allocating the cost of a tangible asset over its useful life.