Exhibit 12

question 7

Multiple Choice

Exhibit 12.3 A fund manager wants to know if it equally likely that the Dow Jones Industrial average will go up each day of the week.For each day of the week,the fund manager observes the following number of days when the Dow Jones Industrial average goes up. Refer to Exhibit 12.3.Using the critical value approach,the decision and conclusion are:

• A)Reject the null hypothesis,not all of the proportions are the same
• B)Reject the null hypothesis,all of the proportions are not the same
• C)Do not reject the null hypothesis,all of the proportions are the same
• D)Do not reject the null hypothesis,cannot conclude not all of the proportions are the same

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Definitions:

Eibl-Eibesfeldt

Refers to Irenäus Eibl-Eibesfeldt, an ethologist known for his work in human behavior and evolutionary biology.

Human Facial Expressions

The visible changes in the face that convey an individual's emotional state, intentions, or social communication.

Basic Emotions

Fundamental feelings that are universal across human cultures, such as happiness, sadness, fear, disgust, anger, and surprise.

Neurotransmitter

Biological chemicals that transmit signals across synapses from one neuron to another in the brain.