Mean
Understanding the Mean
Median
Mode
Salinity Exercise
Statistics and Parameters
Process Variation
Frequency Histograms
Creating Histograms
Histograms in Excel
Excel Chart
Histogram Exercise
Variance
Understanding Variance
Standard Deviation
Standard Deviation Exercise
Introduction to Statistics Exercises
::
THE NORMAL DISTRIBUTION
The Vials Filling Simulation
The Histograms
Calculating Proportions
The Continuous Distribution
Normal Distribution
Calculating Area
Using Tables
The Normal Distribution Calculator
Why Normal
Descriptive and Inferential Statistics
Normal Distribution Exercises
::
REPRESENTING DATA
XY Graphs
The Regression Equation
Scatter Graphs
Correlation
Regression with Excel
Box Plots
Calculating the Quartiles
Box Plots for Comparison
Grouped Data
Cumulative Frequency
Percentiles
Pareto Charts
Stem and Leaf Plots
Multi-Vari Charts
Multi-Vari Chart Examples
Exercises
::
TESTING FOR NORMALITY
Testing for Normality
The Normal Probability Plot
How Normal Probability Plots Work
Using z-scores
The Probability Plot
Normal Probability Plot of Non-Normal Data
Points off the Distribution
Creating Normal Probability Plots Using Minitab
Testing for Normality Exercise
::
HYPOTHESIS TESTING
The Testing Process
Sample Averages
Confidence Intervals
Hypothesis Tests
The Null Hypothesis
The p-Value
Interpreting the Test Results
One & Two sided Tests
Exercises
Using 'z' values
Type I & II Errors and Power
Deciding on the Sample Size
Other Types of Hypothesis Test
Exercises
