Five students took a math test before and after tutoring.Their scores were as follows. 
Do the data suggest that the tutoring improves math scores? Conduct a Wilcoxon signed rank test using a 0.05 level of significance.
Definitions:
Insolvency
A financial state in which an entity can no longer meet its debt obligations, leading to legal consequences such as bankruptcy.
Market To Book Value
A financial ratio used to compare a company's current market price to its book value, indicating how much shareholders are paying for the net assets of a company.
ROE
Return on Equity, a measure of financial performance calculated by dividing net income by shareholders' equity, indicating how efficiently a firm uses its equity to generate profit.
Leverage Ratio
The leverage ratio is a financial metric indicating the level of debt used by a business to finance its assets, often used to assess financial risk.
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