When someone is on trial for suspicion of committing a crime,the hypotheses are: Which of the following is correct?
A)Type I error is acquitting a guilty person.
B)Type I error is convicting an innocent person.
C)Type II error is acquitting an innocent person.
D)Type II error is convicting an innocent person.

Question

When someone is on trial for suspicion of committing a crime,the hypotheses are:  Which of the following is correct?
A)Type I error is acquitting a guilty person. 
B)Type I error is convicting an innocent person. 
C)Type II error is acquitting an innocent person. 
D)Type II error is convicting an innocent person.

Quizplus · Accepted Answer

Type I error is the rejection of a true null hypothesis (in this case, the person is innocent) and is convicting an innocent person. Choice A is incorrect because acquitting a guilty person would mean not rejecting the null hypothesis and would not be an error. Choice C is incorrect because Type II error is failing to reject a false null hypothesis (in this case, the person is guilty) and is acquitting a guilty person. Choice D is incorrect because convicting an innocent person is Type I error, not Type II error.

When Someone Is on Trial for Suspicion of Committing a Crime,the