Published: Jan 20th, 2014
Random Variables Binomial Random Variables Continuous Random Variables We have almost reached the end our discussion of probability. We were introduced to the important concept of random variables, which are quantitative variables whose […]
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 […]
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 […]
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 […]
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 […]
Published: Mar 8th, 2013
Introduction Review: Types of Variables One Sample Z-Test for a Population Proportion Step 1. Stating the Hypotheses CO-4: Distinguish among different measurement scales, choose the appropriate descriptive and inferential statistical methods […]
Published: Mar 8th, 2013
Type I and Type II Errors in Hypothesis Tests Reasons for a Type I Error in Practice Reasons for a Type II Error in Practice Power of a Hypothesis Test […]
Published: Mar 8th, 2013
Hypothesis Testing Step 1: State the Hypotheses Hypothesis Testing Step 2: Collect Dtaa, Check Conditions, and Summarize Data Hypothesis Testing Step 3: Assess the Evidence Hypothesis Testing Step 4: Making […]
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 […]
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 […]