Write the Word or Phrase That Best Completes Each Statement $\alpha = 0.05$

question 12

Short Answer

Write the word or phrase that best completes each statement or answers the question.
-Nine students took a standardized test. Their scores are listed below. Later on, they took a test preparation course and retook the test. Their new scores are listed below. Use the Wilcoxon signed-ranks test to test the hypothesis that the test preparation had no effect on their scores. Use $\alpha = 0.05$ .
$\begin{array}{lccccccccc}\hline \text { Student } & 1 & 2 & 3 & 4 & 5 & 6 & 7 & 8 & 9 \\\hline \text { Before Score } & 900 & 1170 & 880 & 1040 & 1050 & 960 & 1070 & 1140 & 980 \\\text { After Score } & 920 & 1170 & 870 & 1080 & 1080 & 970 & 1060 & 1180 & 1000 \\\hline\end{array}$

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Definitions:

Reverse Stock Split

A reverse stock split is a consolidation of shares that decreases the total number of outstanding shares and increases the share price proportionately.

Market Value

The existing price for buying or selling an asset or service in the marketplace.

Retained Earnings

The portion of a company's profits that are kept and not paid out as dividends to shareholders, often reinvested into the business.

Special Dividend

A one-time distribution of earnings to shareholders, outside of the regular dividend schedule.