In the following table, individuals are cross-classified by their age group and income level. Using the p-value approach and α = 0.05, the decision and conclusion are ________.
A) do not reject the null hypothesis; age and income are dependent
B) do not reject the null hypothesis; age and income are independent
C) reject the null hypothesis; age and income are dependent
D) reject the null hypothesis; age and income are independent

Question

In the following table, individuals are cross-classified by their age group and income level.  Using the p-value approach and α = 0.05, the decision and conclusion are ________.
A) do not reject the null hypothesis; age and income are dependent 
B) do not reject the null hypothesis; age and income are independent 
C) reject the null hypothesis; age and income are dependent 
D) reject the null hypothesis; age and income are independent

Quizplus · Accepted Answer

Based on the p-value approach with α = 0.05, since the calculated p-value (0.002) is less than the significance level α, we reject the null hypothesis that age and income are independent and conclude that they are dependent.

In the Following Table, Individuals Are Cross-Classified by Their Age