We estimate that about 5 to 8 percent of a random sample of children have ADD.
It was based on a random sample of 625 lone parents interviewed in 1991 and again in 1995.
The monthly Consumer Confidence Survey, based on a probability-design random sample, is conducted for The Conference Board by Nielsen.
The National Federation of Independent Business (NFIB) conducts monthly surveys of a random sample of its 350, 000 members.
To begin, the researchers collected a random sample of actual applications from entrepreneurs seeking commercial loans for the first time.
From a random sample of 1, 006 admissions, 324 patient safety incidents were found - 136 (42%) resulting in patient harm.
Beckman said Boston Chicken -- which operates restaurants called Boston Market -- voluntarily performs four random sample tests for the bacteria.
However, people are unlikely to confess to breaking the law, and tax inspectors do not usually check on a random sample of the population.
The Steely family was part of a random sample of Rochester residents invited to participate in research Dr. Whiteside was conducting to develop anxiety questionnaires.
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To do this, he and his team took a random sample from the corpus, checked what proportion were non-words and extrapolated that to the whole lot.
"With such a large, totally random sample, we are assured of equal representation of age, income, ethnicity, and a certain percentage of households from each state, " he says.
In order to find out, we took a random sample of 38, 567 people from our database modern workers from the frontlines to the C-suite and analyzed their emotional intelligence profiles.
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Based on actual surveys and interviews with a random sample of debtors, the profs estimate that in 2003, at least 259, 000, or 15.7% of all bankruptcies, were really business-related.
In a meritocracy the Lords would increasingly come to represent a random sample of the population over the generations, as regression to the mean moves all to the average.
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They partnered with Modern Survey, which sends out a survey to a random sample of full-time, adult US workers to learn how they feel about their relationship with their managers.
Pose the following questions to help groups determine their polling samples and how their polls will be conducted: Will you use a random sample of voters or some other kind of sample?
The initial plan formulated in early 2004 called for the recruitment of 100, 000 pregnant women from a random sample of U.S. households in about 100 communities, mostly individual counties across the country.
FORBES: What Caused A Billion Dollar Federal Study Of Child Health To Implode?
The new Zogby Poll, conducted online of a random sample of 1500 likely voters on February 27, reveals that the President is holding on to the base of supporters that re-elected him last November.
That second audit has now been questioned on many grounds including the fact that, through a set of careless procedures, the observers could have been duped when selecting a random sample of centres to audit.
Such materials were used in a new peer-reviewed study published last week in the highly respected journal Middle East Quarterly (MEQ) as indicators of jihadist sentiment and proselytization in a random sample of 100 American mosques.
This year, however, saw a decline in the percentage of tweens and tens in the social networking universe, with a rise in the 18 to 24 year old segment, 25 to 34 year olds, 35-44 and 45-55 age brackets, New Jersey-based Edison Research found in their national random sample of 2, 020 telephone interviews conducted in February 2011.
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The poll was conducted by landline and cell phone among a random national sample of 1, 007 U.S. adults.
This comes after weeks of spotty polling, in which wide-scale power outages and destruction made it difficult to find a truly random opinion sample.
Its new telephone-based random-quota sample cut that to 18 points.
If the sample is too small or is not random, then estimates regarding the number of responsive documents contained within the population could be wildly inaccurate.
So, although there have been controversial cases usually those that have ignored the fact that people from the same ethnic group share particular genetic signatures more often than people drawn at random from the population finding the right signatures in a sample generally does mean you're nicked.
The precincts are selected by random chance, like a lottery, and every precinct in the state has an equal chance to be in the sample.
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