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Wrap-Up (Estimation)

Published: Feb 16th, 2013

In this section on estimation, we have discussed the basic process for constructing confidence intervals from point estimates. In doing so we must calculate the margin of error using the […]

Population Proportions

Population Proportions

Published: Feb 16th, 2013

Confidence Intervals Sample Size Calculations When is it safe to use these methods? Let’s Summarize CO-4: Distinguish among different measurement scales, choose the appropriate descriptive and inferential statistical methods based on […]

Population Means (Summary)

Population Means (Summary)

Published: Feb 16th, 2013

Let’s summarize When the population is normal and/or the sample is large, a confidence interval for unknown population mean μ (mu) when σ (sigma) is known is: where z* is […]

Population Means (Part 3)

Population Means (Part 3)

Published: Feb 16th, 2013

Sample Size Calculations When is it safe to use these methods? What if σ (sigma) is unknown? CO-4: Distinguish among different measurement scales, choose the appropriate descriptive and inferential statistical methods […]

Population Means (Part 2)

Population Means (Part 2)

Published: Feb 16th, 2013

Other Levels of Confidence Understanding the General Structure of Confidence Intervals CO-4: Distinguish among different measurement scales, choose the appropriate descriptive and inferential statistical methods based on these distinctions, and interpret […]

Learn by Doing – Visualizing Relationship between Confidence and Width

Published: Feb 16th, 2013

The purpose of this activity is to use computer simulation to visually explore and reinforce the relationship between confidence and width, for confidence intervals. We will use an applet to […]

Population Means (Part 1)

Population Means (Part 1)

Published: Feb 16th, 2013

The General Case CO-4: Distinguish among different measurement scales, choose the appropriate descriptive and inferential statistical methods based on these distinctions, and interpret the results. LO 4.30: Interpret confidence intervals for population […]

Did I Get This – Properties of Point Estimators

Published: Feb 16th, 2013

    This document is linked from Estimation.

Estimation

Estimation

Published: Jul 28th, 2012

Introduction Point Estimation Desired Properties of Point Estimators Importance of Sampling and Design Standard Error and Sample Size Another Point Estimator (sample standard deviation) Summary of Point Estimation Introduction to […]

Unit 4A: Introduction to Statistical Inference

Unit 4A: Introduction to Statistical Inference

Published: Jul 28th, 2012

Introduction Types of Inference (Point Estimation, Interval Estimation, Hypothesis Testing) Inference for One Variable Outline of the Process Applied Steps (What do Researchers Do?) Theoretical Steps (What do Statisticians Do?) […]