Published: Mar 17th, 2014
Presentation with Transcript Part A (5:34) Slides 1-6 Introduction Effect of Sample Size on Hypothesis Testing Part B (3:11) Slides 7 – 11 Statistical Significance vs. Practical Importance Part C […]
Published: Mar 17th, 2014
Presentation with Transcript Video – Part 1 (7:23) Slides 1-11: Type I and Type II Error Video – Part 2 (3:14) Slides 12-13: More about Errors Video – Part 3 […]
Published: Oct 23rd, 2013
After reading an article using research done by the Organization for Economic Co-operation and Development (OECD) based in France, a statistics student decided to conduct his own study to see […]
Published: Oct 22nd, 2013
The UCLA Internet Report (February 2003) estimated that roughly 8.7% of Internet users are extremely concerned about credit card fraud when buying online. A study was designed in order to […]
Published: Oct 22nd, 2013
The purpose of this activity is to give you guided practice exploring the effect of sample size on the significance of sample results, and help you get a better sense […]
Published: Oct 22nd, 2013
Suppose that only 40% of the U.S. public supported the general direction of the previous U.S. administration’s policies. To gauge whether the nationwide proportion, p, of support for the current administration is […]
Published: Mar 18th, 2013
The purpose of this activity is to give you hands-on practice in following up a test for the population proportion p in which Ho has been rejected with a confidence interval, and […]
Published: Mar 18th, 2013
1. The Effect of Sample Size on Hypothesis Testing 2. Statistical significance vs. practical importance. 3. Hypothesis Testing and Confidence Intervals Let’s summarize CO-1: Describe the roles biostatistics serves in the […]
Published: Mar 8th, 2013
Type I and Type II Errors in Hypothesis Tests Reasons for a Type I Error in Practice Reasons for a Type II Error in Practice Power of a Hypothesis Test […]