In an earlier blog post, I began a two-part series to examine a proposed sample preparation scheme for measuring the weight percentage of sodium in potato chips. My first post: Introduced the problem. Entered the raw data into JMP. Standardized the format of the data using Standardize Attributes. Used the Stack
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Potato chips and ANOVA, Part 2: Using analysis of variance to improve sample preparation in analytical chemistry
Potato chips and ANOVA in analytical chemistry, Part 1: Formatting data in JMP
Sample preparation is a very important part of measuring quantities of substances in analytical chemistry. One benefit of a good sample preparation scheme is the minimization of the cumulative uncertainty for the estimated quantity of interest. This two-part blog series will show how a basic statistical technique called analysis of
Determining chemical concentration with standard addition: An application of linear regression in JMP
One of the most common tasks in chemistry is to determine the concentration of a chemical in an aqueous solution (i.e., the chemical is dissolved in water, with other chemicals possibly in the solution). A common way to accomplish this task is to create a calibration curve by measuring the