mPower: Interactive applet to explore power of a hypothesis test

In mosaicManip: Project MOSAIC (mosaic-web.org) manipulate examples.

Description

A group activity meant to demonstrate the concept of power of a hypothesis test. When played as a class, students make a sound when they reject the null hypothesis, so that gradually the whole class makes the designated noise as power becomes large.

Usage

mPower()

Details

The histogram represents the random sample data based on n points centered around mu with standard deviation of sigma. The true mean is 5. As mu increases, power increases. As n increases, power increases. As sigma increases, power decreases. The class should use this applet together and move the sliders to designated points together. If a student is able to reject the null hypothesis, they make a sound such as "ribbit". As power increases due to changes to n, mu, and sigma, ribbits increase.

Value

A function that allows the user to explore power.

Author(s)

Andrew Rich ([e-mail]), Daniel Kaplan ([e-mail]), and Homer White ([e-mail])

Examples

	if(require(manipulate)){
		mPower()
	}

mosaicManip documentation built on May 2, 2019, 5:48 p.m.