Content Tagged “Standard Error of a Statistic”

Learn by Doing – Z-Test for a Proportion

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 […]

Did I Get This – Proportions (Step 4)

Published: Oct 22nd, 2013

Two hypothesis tests were conducted. In test I, a significance level of .05 was used, and the p-value was calculated to be 0.025. In test II, a significance level of […]

Learn by Doing – Proportions (Step 4)

Published: Oct 22nd, 2013

The purpose of this activity is to give you a better sense of the p-value, and in particular, help strengthen your intuition about how it measures the evidence against the […]

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)

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)

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)

Published: Mar 17th, 2013

This document is linked from 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 […]

Little Handbook – Confidence Intervals

Published: Feb 16th, 2013

View the Reading on Confidence Intervals – Analogy of a Boy and his Dog (≈ 400 words, this is VERY instructive I think!) View the Reading on Confidence Intervals – Introduction (≈ […]