Perform the Indicated Wilcoxon Test $$\alpha$$ = 005

question 26

Essay

Perform the indicated Wilcoxon test. Be sure to do the following: Identify the claim mathematically and state the null
and alternative hypotheses. Determine the critical value and find the test statistic. Decide whether to reject or fail to
reject the null hypothesis and interpret the decision in the context of the original claim.
-Verbal SAT scores for students randomly selected from two different schools are listed below. Use the
Wilcoxon rank sum test to test the claim that there is no difference in the scores from the two schools.
Use $$\alpha$$ = 0.05. $$\begin{array} { l l l | l l l } { \text { School } 1 } & && { \text { School } 2 } \\\hline 540 & 510 & 760 & 480 & 430 & 670 \\470 & 740 & 520 & 420 & 700 & 580 \\570 & 770 & 600 & 680 & 540 & 520 \\580 & 720 & 740 & 620 & 630 & 530\end{array}$$

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Definitions:

Absolute Amounts

Numerical values or quantities that are not relative or comparative and exist independently as total figures.

Economists

Professionals who study, develop, and apply theories and principles of economics to understand how economies work and to analyze economic policies.

Determinants

Factors that cause changes in the behavior of individuals, systems, or processes, often studied to understand cause-and-effect relationships.

Elasticity of Demand

A measure of how much the quantity demanded of a good responds to a change in the price of that good, quantitatively defined as the percentage change in quantity demanded divided by the percentage change in price.