Activity 1: Learn By Doing Category Subscribe to RSS Feed

“Learn By Doing” activities for our course materials.

Learn by Doing – Proportions (Step 2)

Learn by Doing – Proportions (Step 2)

Published: Mar 17th, 2013

    This document is linked from Proportions (Step 2).

Learn by Doing – State Hypotheses (Proportions)

Published: Mar 17th, 2013

In each of the following examples, a test for the population proportion (p) is called for. You are asked to select the right null and alternative hypotheses. Scenario 1:The UCLA […]

Learn by Doing – Proportions (Overview)

Published: Mar 8th, 2013

According to the American Association of Community Colleges, 23% of community college students receive federal grants. The California Community College Chancellor’s Office anticipates that the percentage is smaller for California […]

Learn by Doing – Review Types of Variables

Published: Mar 8th, 2013

    For each scenario, identify the variable as either quantitative or categorical. This document is linked from Proportions (Introduction & Step 1).

Learn by Doing – Power of Hypothesis Tests

Learn by Doing – Power of Hypothesis Tests

Published: Mar 8th, 2013

We will use the following applet for populations means in this activity which will help you understand the concept of power. Interactive Applet: Power We will start with two examples […]

Learn By Doing – Using p-values

Published: Mar 8th, 2013

The following two hypotheses are tested: Ho: The proportion of U.S. adults who oppose gay marriage is roughly 50%. Ha: The proportion of U.S. adults who oppose gay marriage is […]

Learn by Doing – State the Hypotheses

Published: Mar 8th, 2013

  According to the Centers for Disease Control and Prevention, the proportion of U.S. adults age 25 or older who smoke is 0.22. A researcher suspects that the rate is […]

Learn By Doing – Logic of Hypothesis Testing

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 […]

Learn by Doing – Confidence Intervals – Proportions #1

Published: Feb 16th, 2013

    A poll asked a random sample of 1,000 U.S. adults, “Do you think that the use of marijuana should be legalized?” 560 of those asked answered yes. This […]

Learn by Doing – Sample Size

Published: Feb 16th, 2013

A study was done on pregnant women who smoke during their pregnancies. In particular, the researchers wanted to study the effect that smoking has on the pregnancy length. A sample […]