Type I errors and Type II errors
Not what you're looking for?
I would like you help to explain this problem...
9.13 In the U.S. legal system, a defendant is presume innocent until proven guilty. Consider a null hypothesis H o. that the defendant is innocent, and an alternative hypothesis H 1 that the defendant is guilty. A jury has two possible decisions: Convict the defendant(i.e., do not reject the null hypothesis). Explain the meaning of the risks of committing either a Type I or a Type II error in this example.
9.14 Suppose the defendant in problem 9.13 is presumed guilty until proven innocent as in some other judicial systems. How do the null and alternative hypotheses differ from those in 9.13? What are the meanings of the risks of commiting either a Type I or Type II here?
Answer:H o: defendant is guilty, H 1:defendant is innocent. A type I error would be not convicting a guilty person. A type II error would be convicting an innocent person.
Purchase this Solution
Solution Summary
This is a 450 word solution explaining Type I and Type II errors in the context of the U.S. legal system.
Solution Preview
This is a 450 word solution explaining Type I and Type II errors in the context of the U.S. legal system.
Please see the attached Word document for fully formatted explanations.
------------------------------------------------------------------------------------
9.13 In the U.S. legal system, a defendant is presumed innocent until proven guilty. Consider a null hypothesis H0: that the defendant is innocent, and an alternative hypothesis H1 that the defendant is guilty. A jury has two possible decisions: Convict the defendant (i.e., do not reject the null hypothesis). Explain the meaning of the risks of committing either a Type I or a Type II error in this example.
It appears that there is an error in your problem as stated. The problem states that if you convict the defendant it means you do not reject the null hypothesis. In fact, it you convict the defendant you do reject the ...
Purchase this Solution
Free BrainMass Quizzes
Know Your Statistical Concepts
Each question is a choice-summary multiple choice question that presents you with a statistical concept and then 4 numbered statements. You must decide which (if any) of the numbered statements is/are true as they relate to the statistical concept.
Measures of Central Tendency
Tests knowledge of the three main measures of central tendency, including some simple calculation questions.
Measures of Central Tendency
This quiz evaluates the students understanding of the measures of central tendency seen in statistics. This quiz is specifically designed to incorporate the measures of central tendency as they relate to psychological research.
Terms and Definitions for Statistics
This quiz covers basic terms and definitions of statistics.