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:

Innocent Person

An individual who has not committed the crime or offense they are accused of.

Criminal Trial

A legal proceeding in which a person accused of committing a crime is tried in a court, judged, and then sentenced if found guilty.

Error Probability

The likelihood of making an incorrect decision or inference in a statistical test.

Type I Error

The mistake of rejecting a true null hypothesis, also known as a "false positive" in hypothesis testing.