pulmonary
发表于 2025-3-23 10:10:18
Michael Agyemang Adarkwah,Samuel Amponsahy of effects upon which he bases a working hypothesis; he then must check them against the simpler hypothesis that the effects observed are conditioned solely by chance. ., which thus becomes a method characteristic of modern science.
consolidate
发表于 2025-3-23 14:14:46
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圆锥体
发表于 2025-3-23 20:49:58
https://doi.org/10.1007/978-3-662-58624-2ssified according to occupational status as, for example, 50% laborers, 35% white-collar workers, 8% self-employed, and 7% civil servants. Stratification for the most part increases the cost of the sample survey; nevertheless, it is an important device.
artless
发表于 2025-3-23 23:00:01
https://doi.org/10.1007/978-3-540-28840-4en the corresponding means may be compared by analysis of variance. This is the simplest form of variance. If the influence of each of . independent factors, at different levels, has to be sorted out properly, it is necessary that the observed values be obtained from special . (cf., Section 7.7).
overweight
发表于 2025-3-24 05:06:50
Statistical Methods in Medicine and Technology,s in the first category; charges in the diet, and in the daily routine belong to the second. To eliminate two influences of the first type, neither the physician assessing the therapy result nor the patient must know whether a soporific or a placebo is administered. This type of study is called a double blind trial.
谁在削木头
发表于 2025-3-24 09:41:42
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arbovirus
发表于 2025-3-24 14:33:25
Analysis of Variance Techniques,en the corresponding means may be compared by analysis of variance. This is the simplest form of variance. If the influence of each of . independent factors, at different levels, has to be sorted out properly, it is necessary that the observed values be obtained from special . (cf., Section 7.7).
obviate
发表于 2025-3-24 17:53:16
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暗讽
发表于 2025-3-24 20:20:03
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公司
发表于 2025-3-25 02:47:04
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