A student claims that he can correctly identify whether a person is a business m

Question

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 Scenario 9-2, what is the value of a? A) 0.84 B)0.13 C) 0.16 D) 0.87

Which of the following would be an appropriate alternative hypothesis? A) The sample proportion is less than 0.65. B)The population proportion is less than 0.65. C) The population proportion is not less than 0.65. D) The sample proportion is not less than 0.65.

Explanation / Answer

Solution:

1) c) Saying that the person is a agriculture major when in fact the person is an business major.

2) B) 0.13

3) B)The population proportion is less than 0.65

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