SCENARIO 10-2
a Realtor Wants to Compare the Mean Sales-To-Appraisal $\mathrm{A}: 1.2,1.1,0.9,0.4$

question 18

Multiple Choice

SCENARIO 10-2
A realtor wants to compare the mean sales-to-appraisal ratios of residential properties sold in four neighborhoods (A, B, C, and D) .Four properties are randomly selected from each neighborhood and the ratios recorded for each, as shown below. $\mathrm{A}: 1.2,1.1,0.9,0.4$$\quad C: 1.0,1.5,1.1,1.3$
B: $2.5,2.1,1.9,1.6$$\quad \mathrm{D}: 0.8,1.3,1.1,0.7$
Interpret the results of the analysis summarized in the following table:
$\begin{array}{lcclcc}\hline \text { Source } & \text { df } & \text { SS } & \text { MS } & \text { F } & \text { PR }>\text { F } \\\hline \text { Neighborhoods } & & 3.1819 & 1.0606 & 10.76 & 0.001 \\\text { Error } & 12 & & & & \\\text { Total } & & 4.3644 & & &\end{array}$
-Referring to SCENARIO 10-2, what should be the conclusion for the Levene's test for homogeneity of variances at a 5% level of significance?

• A)There is insufficient evidence that the variances are all the same.
• B)There is sufficient evidence that the variances are all the same.
• C)There is insufficient evidence that the variances are not all the same.
• D)There is sufficient evidence that the variances are not all the same.

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Definitions:

Human Skull

The bony structure that forms the head in the human skeleton, encapsulating the brain and supporting the structures of the face.

Bipedalism

Is the ability to walk upright on two legs, characteristic of humans and their ancestors.

Spinal Cord

A long, thin, tubular structure made up of nervous tissue, which extends from the brain down the back, transmitting nerve signals between the brain and the rest of the body.

Human Childbirth

The process of delivering a baby from the uterus to the outside world, typically through stages of labor and delivery.