Exhibit 7-11: in a 2 $\times$ 3 Experimental Design Three Kinds of Treatments (A, B, and Kinds

question 82

Multiple Choice

Exhibit 7-11: In a 2 $\times$ 3 experimental design three kinds of treatments (A, B, and C) were used with two groups of subjects (M and N) .The number of subjects and the mean of each group are as follows:
$\begin{array}{lll}&&&\text { Treatments }\\&&\mathrm{A} & \mathrm{B} & \mathrm{C} \\&\mathrm{~M}&\mathrm{X}=20 & \mathrm{X}=18 & \mathrm{X}=16 \\&&\mathrm{~N}=5 & \mathrm{~N}=5 & \mathrm{~N}=5 \\\text { subjects } \\&\mathrm{~N}&\mathrm{X}=12 & \mathrm{X}=14 & \mathrm{X}=16 \\&&\mathrm{~N}=5 & \mathrm{~N}=5 & \mathrm{~N}=5\end{array}$
The following is the incomplete summary table of multifactor analysis of variance.Complete the table and answer the following questions.
$\begin{array}{ll}\text { Source of variation } & S S & \underline { \text { df }} & \underline { \text { MS}} & \underline { \text { F}}\\\hline \text { Between columns } & 0 \\\text { Between rows } & 120 \\\text { Interaction } & \\\hline \text { Between groups } & 200 \\\text { Within groups } & \\\hline \text { Tntal } & 454\end{array}$
-Refer to Exhibit 7-11.The number of degrees of freedom for interaction is

• A) 1.
• B) 2.
• C) 5.
• D) 24.

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Definitions:

Economic Instability

A condition characterized by significant fluctuations in economic performance, manifesting in variables such as prices, demand, employment, and GDP.

Money Supply Growth

An increase in the total amount of money in circulation or in the economy within a specific period.

Monetarists

Economists who believe that variations in the money supply have major influences on national output in the short run and the price level over longer periods, and that the objectives of monetary policy are best met by targeting the growth rate of the money supply.

Monetary Rule

A guideline for the monetary policy stating that the central bank should aim at regulating the money supply to maintain stable prices, output, and employment.