In the following table, individuals are cross-classified by their age group and income level. To test that age group and income are independent, the null and alternative hypothesis are ________. A) H₀: Age group and income are dependent; H_A: Age group and income are independent B) H₀: Age group and income are mutually exclusive; H_A: Age group and income are not mutually exclusive C) H₀: Age group and income are not mutually exclusive; H_A: Age group and income are mutually exclusive D) H₀: Age group and income are independent; H_A: Age group and income are dependent

Question

Quizplus · Accepted Answer

The null hypothesis states that age group and income are independent, while the alternative hypothesis states that they are dependent. This is the typical set up for a chi-squared test of independence, which is commonly used to analyze data in a contingency table like the one provided.

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