Exhibit 20

question 63

Multiple Choice

Exhibit 20.2.A trading magazine wants to determine the number of hours stock brokers work each week.In particular,the trading magazine wants to determine if the median numbers worked per week differs from 100 hours.The magazine samples 18 traders.For the Wilcoxon Signed-Rank Test,the value of the test statistic is . Refer to Exhibit 20.2.Since the sample size is at least 10,T can be assumed normally distributed with mean and standard deviation:

• A)85.50,527.25
• B)22.96,527.25
• C)22.96,85.50
• D)85.50,22.96

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Definitions:

Mental Set

A framework for thinking about a problem, based on previous experiences and successes, that can both aid and hinder problem-solving.

Heuristic

A heuristic is a problem-solving strategy or technique that employs a practical, non-guaranteed method or shortcut to produce solutions that are not guaranteed to be optimal but are sufficient for the circumstances.

Chess Masters

Highly skilled and experienced chess players who have achieved a high level of mastery and recognition in the game of chess.

Future Moves

Anticipated or planned actions and decisions for upcoming times, often considered in strategic thinking and planning.