## Errors and Power

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 […]

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The statistical process where we assume the null hypothesis is true, collect data, determine how likely our data would be if the null hypothesis were true, and use this result to determine whether or not to reject the null hypothesis.

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: 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: Mar 17th, 2014

Video (8:43) Presentation with Transcript This document linked from Hypothesis Testing

Published: Mar 7th, 2014

View Lecture Slides with Transcript – Unit 4A: Introduction to Statistical Inference Video (15:45) This document linked from Unit 4A: Introduction to Statistical Inference

Published: Mar 19th, 2013

Video: Summary Examples Unit 4A (34:51) We’ve now completed the two main sections about inference for one variable. In these sections we introduced the three forms of inference: Point estimation—estimating an unknown […]

Published: Mar 18th, 2013

In the following activities, you are asked to describe each type of error in context (in the words of the problem or scenario). Consider the following hypotheses, which we have […]

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 […]

Published: Mar 8th, 2013

Hypothesis Testing Step 1: State the Hypotheses Hypothesis Testing Step 2: Collect Dtaa, Check Conditions, and Summarize Data Hypothesis Testing Step 3: Assess the Evidence Hypothesis Testing Step 4: Making […]

Published: Mar 8th, 2013

The most commonly accepted tradition is that undergraduate college students will study 2 hours outside of class for every hour in class. This means 30 hours/week for a full-time student […]

Published: Mar 8th, 2013

For many years “working full-time” has meant 40 hours per week. Now it seems that corporate employers expect their employees to work more than this amount. A researcher decides to […]

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