A Researcher Wants to Understand How an Annual Mortgage Payment

question 65

Multiple Choice

A researcher wants to understand how an annual mortgage payment (in dollars) depends on income level and zonal location using a two-way ANOVA without interaction. The data and an incomplete ANOVA table are shown below. At the 5% significance level, the conclusion for the hypothesis test about factor A is ________.

• A) do not reject the null hypothesis; we can conclude the average mortgage payments differ by income level
• B) do not reject the null hypothesis; we cannot conclude the average mortgage payments differ by income level
• C) reject the null hypothesis; we can conclude the average mortgage payments differ by income level
• D) reject the null hypothesis; we cannot conclude the average mortgage payments differ by income level

---

Definitions:

Plasma Levels

The concentration of substances in the blood plasma, often used to measure the amount of drugs, hormones, and other components.

Zona Fasciculata

Middle layer of the adrenal cortex that secretes cortisol.

Cortisol

A steroid hormone produced by the adrenal glands, involved in stress response, metabolism, and inflammation control.

Adrenal Glands

Paired endocrine glands located above the kidneys that produce hormones such as adrenaline and cortisol, crucial for stress response and metabolism.