TABLE 9-2 a Student Claims That He Can Correctly Identify Whether a Whether

question 73

Multiple Choice

TABLE 9-2
A student claims that he can correctly identify whether a person is a business major or an agriculture major by the way the person dresses. Suppose in actuality that if someone is a business major, he can correctly identify that person as a business major 87% of the time. When a person is an agriculture major, the student will incorrectly identify that person as a business major 16% of the time. Presented with one person and asked to identify the major of this person (who is either a business or an agriculture major) , he considers this to be a hypothesis test with the null hypothesis being that the person is a business major and the alternative that the person is an agriculture major.
-Referring to Table 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:

Productivity Efficiency

measures how effectively economic inputs are converted into outputs, often assessed to improve organizational workflows, resource usage, and overall performance.

Top Managers

Senior executives responsible for the overall direction and management of an organization, making strategic decisions and setting policies.

First-line Managers

Managers at the lowest level of an organization's hierarchy, directly supervising staff and overseeing day-to-day operations.

Productivity Efficiency

A metric that measures how effectively resources, such as labor and materials, are being used to produce goods and services.