ISSN:
1750-3841
Source:
Blackwell Publishing Journal Backfiles 1879-2005
Topics:
Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
,
Process Engineering, Biotechnology, Nutrition Technology
Notes:
The sampling distributions of aflatoxin in fresh and roasted pecans, visible mycelium in fresh pecans and total plate count in ground beef were examined using the chi-square and Kolmogorov-Smirnov tests. The Kolmogorov-Smirnov test was found to be more conservative than the chi-square test and a powerful technique for rejection of null hypotheses. The results indicated that many sampling distributions used in quality control of foods deviate significantly from the normal distribution. The sampling distribution for total plate count in ground beef and the distribution of sample means were determined. A critical sample size of at least 5 was found to be necessary to approximate the normal distribution for the sample means. The average and standard deviation control charts utilizing the sample size of 5 were established to illustrate the detection of out-of-control samples.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1111/j.1365-2621.1979.tb03426.x
