Using a significance level of 0.05, test the claim that the two variables are independent. State whether the variables are related or not related.
-A medical researcher is interested in determining if there is a relationship between adults over 50 who walk regularly and low, moderate, and high blood pressure. A random sample of 236 adults over 50 is selected and the results are given below. $$\begin{array} { l | c c c }
\text { Blood Pressure } & \text { Low } & \text { Moderate } & \text { High } \
\hline \text { Walkers } & 50 & 62 & 25 \
\text { Non-walkers } & 21 & 65 & 28
\end{array}$$
A)related
B)not related

Question

Using a significance level of 0.05, test the claim that the two variables are independent. State whether the variables are related or not related.
-A medical researcher is interested in determining if there is a relationship between adults over 50 who walk regularly and low, moderate, and high blood pressure. A random sample of 236 adults over 50 is selected and the results are given below. $$\begin{array} { l | c c c } 
\text { Blood Pressure } & \text { Low } & \text { Moderate } & \text { High } \
\hline \text { Walkers } & 50 & 62 & 25 \
\text { Non-walkers } & 21 & 65 & 28
\end{array}$$
A)related
B)not related

Quizplus · Accepted Answer

The chi-square test for independence would typically be used to test the claim about the relationship between two categorical variables: walking regularly and blood pressure levels. Given the context and the data provided, if the p-value from the chi-square test is less than the significance level of 0.05, we would reject the null hypothesis of independence and conclude that the variables are related. The distribution of blood pressure levels across walkers and non-walkers suggests a potential relationship, as the proportions differ significantly between the two groups, especially in the low and high blood pressure categories.

Using a Significance Level of 0 A)related B)not Related

Using a Significance Level of 0 A)related
B)not Related