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More about Hypothesis Testing

More about Hypothesis Testing

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 […]

Proportions (Step 4 & Summary)

Proportions (Step 4 & Summary)

Published: Mar 18th, 2013

Step 4. Drawing Conclusions Based on the P-Value Many Students Wonder: Hypothesis Testing for the Population Proportion Let’s Summarize!! What’s next? CO-4: Distinguish among different measurement scales, choose the appropriate descriptive […]

Proportions (Step 3)

Proportions (Step 3)

Published: Mar 18th, 2013

Step 3. Finding the P-value of the Test Alternative Hypothesis is “Less Than” Alternative Hypothesis is “Greater Than” Alternative Hypothesis is “Not Equal To” The Four Steps in Hypothesis Testing […]

Did I Get This – Proportions (Step 2)

Published: Mar 17th, 2013

The UCLA Internet Report (February 2003) estimated that a proportion of roughly 0.75 of online homes are still using dial-up access, but claimed that the use of dial-up is declining. […]

Learn by Doing – Proportions (Step 2)

Learn by Doing – Proportions (Step 2)

Published: Mar 17th, 2013

    This document is linked from Proportions (Step 2).

Proportions (Step 2)

Proportions (Step 2)

Published: Mar 17th, 2013

Step 2. Collect Data, Check Conditions, and Summarizing the Data The Four Steps in Hypothesis Testing CO-4: Distinguish among different measurement scales, choose the appropriate descriptive and inferential statistical methods based […]

Learn by Doing – Find Normal Scores

Published: Feb 9th, 2013

Recall the example from the last activity: According to the College Board website, the scores on the math part of the SAT (SAT-M) in a certain year had a mean […]

Learn by Doing – Find Normal Probabilities

Published: Feb 9th, 2013

  According to the College Board website, the scores on the math part of the SAT (SAT-M) in a certain year had a mean of 507 and standard deviation of […]

Normal Applications

Normal Applications

Published: Feb 9th, 2013

Working with Non-standard Normal Values – Finding Probabilities Finding Normal Scores – Backwards! Given probability, find the score. Normal Approximation for Binomial Rule of Thumb Continuity Correction CO-6: Apply basic concepts of probability, […]

Did I Get This – Finding Standard Normal Scores

Published: Feb 9th, 2013

    This document is linked from Standard Normal Distribution.