Select Page

Treatment

Experimental Treatment Statistics refers to the application of a statistical method to a data set in order to derive meaning. You can either use descriptive statistics to describe the relationship between variables within a population or inferential statistics to test...

t-Distribution

Used for determining the confidence interval for means or for determining whether two means are significantly different. Developed by Gossett under the pseudonym “Student; hence, also referred to as Student’s t-distribution. What is a T Distribution? The T...

Surface Plot

What are surface plots? A plot for a Response or z-variable based on a mesh determined from two input factors, an x-variable and a y-variable. A three-dimensional graph is required to visualize the relationship between three variables. Surface plots are diagrams...

Standard Deviation

Cumulative probability of a normal distribution with expected value 0 and SD 1. In statistics, the standard deviation is a measure of the amount of variation or dispersion of a set of values. A low S.D. indicates that the values tend to be close to the mean (also...

Stability of a Measurement System

A measure of the variation in accuracy or precision of a measurement system over time. When measurements are used as a guide for decisions, it is obvious that there will be more errors in the decisions made based on these measurements. Measurement System Analysis...