Instruction 9-2 a Student Claims That She Can Correctly Identify Whether a Whether

question 30

Multiple Choice

Instruction 9-2
A student claims that she can correctly identify whether a person is studying a business or science major by the way the person dresses.Suppose in actuality that if someone is studying a business major,she can correctly identify that person as a business student 87% of the time.When a person is studying a science major,the student will incorrectly identify that person as a business student 16% of the time.Presented with one person and asked to identify the area of study of this person (who is studying either a business or science major) ,she considers this to be a hypothesis test with the null hypothesis being that the person is a business student and the alternative that the person is a science student.
-Referring to Instruction 9-2,what is the power of the test?

• A)0.13
• B)0.16
• C)0.84
• D)0.87

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Definitions:

Recession

A quick phase of economic reduction, where industrial and trade dynamics slow down, typically delineated by a GDP decrease in two consecutive quarters.

Civil War

A war between groups within the same country or state, often stemming from political, social, or ethnic differences.

Worst Recession

Refers to the most severe period of economic decline during which trade and industrial activity are reduced, typically recognized by a fall in GDP in successive quarters.

World War II

A global conflict that lasted from 1939 to 1945, involving many of the world’s nations, and marked by significant events like the Holocaust and the use of atomic bombs.