Bacteria


In packaged foods one critical concern is the shelf life. Spoilage of food due to bacterial growth can cause major losses. Hence it is of interest to identify conditions which minimize bacterial growth. It is suspected that salt and lipid concentration, pH and temperature may affect growth. The task is to identify levels of various factors, check significance of main effects and interactions and plot cell means in case of two factor interactions that are significant. 

datasets

Collection of datasets as prepared by Profs. A.P. Gore, S.A. Paranjape, and M.B. Kulkarni of Department of Statistics, Poona University, India. With their permission, first letter of their names forms the name of this package, the package has been built by me and made available for the benefit of R users. This collection requires a rich class of models and can be a very useful building block for a beginner.

Prabhanjan Tattar

100 Data Sets for Statistics Education

Bacteria function

A data frame with 300 observations on the following 5 variables.
  <dl>
    <dt><code>Response</code></dt><dd>Reponse</dd> <dt><code>Salt</code></dt><dd>salt concentration in the medium</dd> <dt><code>Lipid</code></dt><dd>lipid concentration in the medium</dd> <dt><code>pH</code></dt><dd>pH of the medium</dd> <dt><code>Temp</code></dt><dd>temperature</dd> </dl> 

Format

http://ces.iisc.ernet.in/hpg/nvjoshi/statspunedatabook/databook.html

Bacteria: A multi-factorial experiment on the bacteria growth in the packaged foods

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