Abstract
1. Formulas are given, for use under two different conditions of sampling, to determine the number of fruits required in a sample in order to give a desired assurance that a certain accuracy has been attained. 2. Approximately 250 fruits of oranges, lemons, and grapefruit were analyzed individually, and the probable errors calculated. The data so obtained were applied to the formulas, and numerical examples worked out to illustrate their use. 3. It is shown that the values given by the formulas are only approximately correct. The sources of error are discussed, and formulas given by which the amount of this inaccuracy may be estimated under different conditions. 4. Analyses of fruits taken from different orange, lemon, and grapefruit trees are given, showing the variability of the fruits of different trees with respect to brix of juice, percentage of sugar, acidity, etc., and the values of the probable errors that such variability produced.
Abstract from the paper’s OpenAlex record; open copy licensed public-domain. Read at the source ↗
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Claims 2
Claim · model-written summary
The fruit-sampling formulas gave only approximately correct values.
Verbatim
e0“It is shown that the values given by the formulas are only approximately correct”
e1“oranges, lemons, and grapefruit”
Claim · model-written summary
The analysis showed variability among trees in fruit Brix, sugar percentage, and acidity.
Verbatim
e0“Analyses of fruits taken from different orange, lemon, and grapefruit trees are given, showing the variability of the fruits of different trees with respect to brix of juice, percentage of sugar, acidity”
e1“oranges, lemons, and grapefruit”