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- 粟屋 隆
- 青山学院大学理工学部物理学科
書誌事項
- タイトル別名
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- On the Welch Test for the Radioactivity Data.
抄録
Possibility of the application of the Welch test on the radioactivity measurements was discussed.<BR>Recently, the measurements of the radioactivities in the seawater and/or marine products are often carried out by the local governments.<BR>It is very important to compare these data and to know whether any significant differences exist between them.<BR>The various kinds of correction must be done for all the radioactivity data, for example, background subtraction, counting efficiency, and so on, depending on the measuring places and instruments.<BR>The test of the significance of the data must be done under the assumption that the variances of the data are different each other, although the parent means of the radioactivities can be assumed to be equal. Therefore, the Welch tests are often used for the radioactivity data.<BR>The author has attempted Monte-Carlo simulations to know the distribution of the normalized statistic which corresponds to that for the Welch test, and concluded that the statistic was not of the t-distribution but of the normal one.<BR>It is therefore concluded that the Welch test is not suitable to the test of the radioactivity data and involves much risks not to reject the significantly different data.
収録刊行物
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- RADIOISOTOPES
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RADIOISOTOPES 46 (10), 703-709, 1997
公益社団法人 日本アイソトープ協会
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キーワード
詳細情報 詳細情報について
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- CRID
- 1390282679130740864
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- NII論文ID
- 130004382965
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- ISSN
- 18844111
- 00338303
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可