Exhibit 20

question 91

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.At the 1% significance level,the right-tail critical value is:

• A)1.645
• B)1.96
• C)2.33
• D)2.575

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Definitions:

Adoption

The process of starting to use something new or integrating a new idea, habit, or technology into use.

Sampling

The process of selecting a subset of individuals or items from a larger population for the purpose of making statistical analysis.

Interest

The cost of borrowing money, typically expressed as a percentage rate, or the attention and curiosity someone shows towards a topic.

Adoption

The process of starting to use something new or integrating a new idea, habit, or innovation into use or practice.