Purchase Solution

Type I and type II Errors, Statistical Significance

Not what you're looking for?

Ask Custom Question

Question 1:
What is a type I and type II errors in hypothesis testing? What would be examples of each? Explain

Question 2:
What is the difference between statistical significance and practical significance? Why is statistical significance not necessarily of practical important difference to a business decision? Provide an example of this.

Attachments
Purchase this Solution

Solution Summary

The expert determines what a type I and type II errors in hypothesis testing are. A complete, neat and step-by-step solutions are provided in the attached file.

Solution Preview

Question1:
What is a type I and type II errors in hypothesis testing? What would be examples of each? Explain.

Type I error (the false positive) is the error of rejecting the null hypothesis when it is actually true
(For example, as in a student accused of copying in an examination when she really did not)
Type II error (the false negative) is the error of failing to reject the null hypothesis given that the alternative hypothesis is actually true (For example, as in a student who did actually copy in an examination being let off).
In a Table form:
Accept ...

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.

Terms and Definitions for Statistics

This quiz covers basic terms and definitions of statistics.

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.