Entering random effects model
In the random effects model, both factors are declared as random factors. This recipe looks at a study on taste from a panel of professional taste testers. Different batches of a food product are tested to check the consistency of taste. Each appraiser tastes each batch twice. This way we can observe the consistency of scores from within the appraiser.
As the product is a selection of batches from a much larger population of batches, the samples represent a random selection from all product batches. The taste testers are a sample of appraisers from a group of tasters, representing a random selection as well; we will use the appraiser as a random factor to represent the variation across appraisers.
The scores are a mean ...
Get Minitab Cookbook now with the O’Reilly learning platform.
O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.
