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

question 135

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 "actual confidence coefficient"?

• A) 0.13
• B) 0.16
• C) 0.84
• D) 0.87

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Definitions:

Hearing

the sense through which sound is perceived, involving the detection of vibrations and their translation by the brain into auditory experiences.

Meniere's Disease

An ailment affecting the inner ear that leads to intense vertigo, tinnitus (ear ringing), diminished hearing capacity, and a sensation of pressure or blockage in the ear.

Inner Ear

The innermost part of the ear, containing the cochlea and vestibular system, responsible for hearing and balance.

Vertigo

A sensation of spinning or feeling like one's surroundings are spinning, which can be a symptom of various disorders.