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
Video (4:30) Presentation with Transcript This document linked from Proportions (Step 4 & Summary)
Published: Mar 17th, 2014
Presentation with Transcript Part 1 (7:28) Slides 1-7: Finding P-Values Part 2 (7:18) There is an error in the transcript for SLIDE 13: It says “We can enter 2.5 in for “x” […]
Published: Mar 17th, 2014
Presentation with Transcript Part 1 (8:16) Slides 1-10: Introduction and Test Statistics Part 2 (4:12) Slides 11-16: Check Conditions This document linked from Proportions (Step 2)
Published: Mar 17th, 2014
Presentation with Transcript Part 1 (2:26) Slides 1-4: Introduction to Steps and Motivating Examples Part 2 (9:21) Slides 5-12: Steps for Motivating Examples Part 3 (4:16) Slides 13-18: Final Comments […]
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: Oct 22nd, 2013
The objective of this activity is to give you guided practice in carrying out the z-test for the population proportion (p). Background: This activity is based on the results of a […]