A company is researching the effectiveness of a new website design to decrease the time to access
A website. Five website users were randomly selected, and their times (in seconds) to access the
Website with the old and new designs were recorded. To compare the times, they computed (new
Website design time - old website design time) . The results follow. 
What is the value of the calculated test statistic?
Definitions:
Expected Opportunity Loss
The potential loss in value for not choosing the best course of action in decision-making under uncertainty.
Perfect Information
An ideal state in decision-making processes where all parties have complete and accurate information.
Expected Payoff
The average amount one can expect to win or lose per bet or decision, calculated by weighing each possible outcome by its probability of occurring.
Perfect Information
A situation in decision-making where all participants have access to all relevant facts and data.
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