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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 (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 […]

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 […]

Linear Relationships – Linear Regression

Linear Relationships – Linear Regression

Published: Dec 24th, 2012

IMPORTANT: The methods covered in this section on linear regression are only applicable for LINEAR relationships.   Summarizing the Pattern of the Data with a Line In General Let’s Summarize CO-4: Distinguish among […]

Unit 4B: Inference for Relationships

Unit 4B: Inference for Relationships

Published: Aug 27th, 2012

Introduction Two-Sided Tests CO-4: Distinguish among different measurement scales, choose the appropriate descriptive and inferential statistical methods based on these distinctions, and interpret the results. LO 4.20: Classify a data analysis situation […]

Linear Relationships – Correlation

Linear Relationships – Correlation

Published: Aug 21st, 2012

IMPORTANT: The methods covered in this section on correlation are only applicable for LINEAR relationships.   Introduction The Correlation Coefficient — r Interpretation Properties of r CO-4: Distinguish among different measurement scales, […]

Scatterplots

Scatterplots

Published: Aug 21st, 2012

Creating Scatterplots Interpreting Scatterplots Direction Form Strength A Labeled (or Grouped) Scatterplot Let’s Summarize CO-4: Distinguish among different measurement scales, choose the appropriate descriptive and inferential statistical methods based on these […]

Case Q-Q

Case Q-Q

Published: Aug 21st, 2012

CO-4: Distinguish among different measurement scales, choose the appropriate descriptive and inferential statistical methods based on these distinctions, and interpret the results. LO 4.20: Classify a data analysis situation involving two variables […]

Case C-C

Case C-C

Published: Aug 21st, 2012

Two Categorical Variables Contingency Tables Finding Conditional (Row and Column) Percents Let’s Summarize CO-4: Distinguish among different measurement scales, choose the appropriate descriptive and inferential statistical methods based on these distinctions, […]