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Sample size

sample size

The number of units (persons, animals, patients, specified circumstances, etc.) in a population to be studied. The sample size should be big enough to have a high likelihood of detecting a true difference between two groups.


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Living or not? (viruses,viroids and prions).

... was anything but stripped down; it carried a genome nearly the size of some bacterial species. And, instead of simply hijacking its host, ... different species of amoeba, expose them to a variety of environmental samples, and see if anything big starts growing in them. They hit pay dirt ...

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by Sumanth001
Sun Dec 08, 2013 12:37 pm
 
Forum: Microbiology
Topic: Living or not? (viruses,viroids and prions).
Replies: 15
Views: 10393

Re: Brain size=IQ level theory (Blacks vs Whites & Asians)

... at all unreasonable for human intelligence to correlate well with brain size, or with the ratio of brain mass to body mass. We can more-or-less see ... body size, age of death, nutritional state in early life, source of the sample, occupational group, cause of death, lapse of time after death, ...

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by Seth90210
Sat Oct 26, 2013 7:38 am
 
Forum: Human Biology
Topic: Brain size=IQ level theory (Blacks vs Whites & Asians)
Replies: 72
Views: 263416

Re: Brain size=IQ level theory (Blacks vs Whites & Asians)

... at all unreasonable for human intelligence to correlate well with brain size, or with the ratio of brain mass to body mass. We can more-or-less see ... study. I think that Lynn took them as they came, in a true random sample, and that the findings that resulted have displeased those who think ...

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by wildfunguy
Tue Oct 15, 2013 4:42 pm
 
Forum: Human Biology
Topic: Brain size=IQ level theory (Blacks vs Whites & Asians)
Replies: 72
Views: 263416

Re: Brain size=IQ level theory (Blacks vs Whites & Asians)

... at all unreasonable for human intelligence to correlate well with brain size, or with the ratio of brain mass to body mass. We can more-or-less see ... study. I think that Lynn took them as they came, in a true random sample, and that the findings that resulted have displeased those who think ...

See entire post
by DavidSims
Sat Oct 12, 2013 3:04 pm
 
Forum: Human Biology
Topic: Brain size=IQ level theory (Blacks vs Whites & Asians)
Replies: 72
Views: 263416

Virology - Calculations

I'm needing some help understanding where to go on sample problems. I haven't had any success finding tutorials or anything online ... stranded DNA. 90.5% is coded into 1262 ORFs. What would be the average size of a coded protein in kiloDaltons? -1184 kb is 1184000 bases times the 660 ...

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by mkay28
Mon Sep 16, 2013 1:05 am
 
Forum: General Discussion
Topic: Virology - Calculations
Replies: 1
Views: 1615
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