Instruction 11-2
a Realtor Wants to Compare the Average Sales-To-Appraisal

question 144

Multiple Choice

Instruction 11-2
A realtor wants to compare the average sales-to-appraisal ratios of residential properties sold in four neighbourhoods (A, B, C, and D) . Four properties are randomly selected from each neighbourhood and the ratios recorded for each, as shown below.
A: 1.2, 1.1, 0.9, 0.4 C: 1.0, 1.5, 1.1, 1.3
B: 2.5, 2.1, 1.9, 1.6 D: 0.8, 1.3, 1.1, 0.7
Interpret the results of the analysis summarised in the following table:
$$\begin{array} { | l | c | c | c | c | c | } \hline \text { Source } & \text { df } & \text { SS } & \text { MS } & \text { F } & \text { PR > F } \\\hline \text { Neighbbourhoods } & & 3.1819 & 1.0606 & 10.76 & 0.001 \\\hline \text { Error } & 12 & & & & \\\hline \text { Total } & & & & & \\\hline\end{array}$$
-Referring to Instruction 11-2,the null hypothesis for Levene's test for homogeneity of variances is

• A) H 0 : M A = M B = M C = M D.
• B) \(H _ { 0 } : { \sigma _ { A } ^ { 2 } } = { \sigma _ { B } ^ { 2 } } = { \sigma _ { C } ^ { 2 } } = \sigma _ { D } ^ { 2 }\)
• C) H 0 : \(\mu\) A = \(\mu\) B = \(\mu\) C = \(\mu\) D.
• D) H 0 : \(\pi\) A = \(\pi\) B = \(\pi\) C = \(\pi\) D.

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Definitions:

Ribosomes

Cellular structures responsible for synthesizing proteins from amino acids during the process of translation.

Protein Synthesis

The process in which cells make proteins, involving transcription of DNA to mRNA and translation of mRNA to a polypeptide chain.

Peroxisomes

Organelles found in virtually all eukaryotic cells, involved in the catabolism of very long chain fatty acids, branched chain fatty acids, bile acids, and xenobiotics.

Liver Cells

Hepatocytes, the main functional cells of the liver, involved in protein synthesis, detoxification, and metabolism.