CE ÎNSEAMNĂ RANDOM SAMPLE ÎN ENGLEZĂ?
Eșantionare (statistici)
În statistici, asigurarea calității și \u0026 amp; metodologia sondajului, eșantionarea se referă la selectarea unui subset de indivizi dintr-o populație statistică pentru a estima caracteristicile întregii populații. Fiecare observație măsoară una sau mai multe proprietăți ale corpurilor observabile distinse ca obiecte sau indivizi independenți. În eșantionarea anchetelor, se pot aplica ponderi la date pentru a se ajusta pentru proiectarea eșantionului, în special eșantionarea stratificată. Rezultatele din teoria probabilității și teoria statistică sunt folosite pentru a ghida practica. În cercetarea în afaceri și în domeniul medical, eșantionarea este folosită pe scară largă pentru colectarea de informații despre o populație. Procesul de eșantionare cuprinde mai multe etape: ▪ Definirea populației de interes ▪ Specificarea unui cadru de eșantionare, a unui set de elemente sau evenimente care pot fi măsurate ▪ Specificarea unei metode de eșantionare pentru selectarea elementelor sau evenimentelor din cadrul cadrului ▪ Determinarea mărimii eșantionului ▪ Implementarea eșantionării plan ▪ Eșantionare și colectare de date ▪ Date care pot fi selectate ...
Definiția random sample în dicționarul Engleză
Definirea eșantionului aleatoriu în dicționar este un eșantion statistic care este conceput pentru a evita interferențele, astfel încât distribuția sa este afectată doar de, și astfel poate fi considerată reprezentativă, a întregii populații.
CĂRȚI ÎN ENGLEZĂ ÎN LEGĂTURĂ CU «RANDOM SAMPLE»
Descoperă întrebuințarea
random sample în următoarea selecție bibliografică. Cărți în legătură cu
random sample și extrase din aceasta pentru a furniza contextul de întrebuințare al acestuia în literatura Engleză.
1
Introduction to Statistics and Data Analysis
If the distribution of interpupillary distance is normal and a random sample of n 25
adult males is to be selected, what is the probability that the sample mean
distance x for these 25 will be between 64 and 67 mm? at least 68 mm? b.
Roxy Peck, Chris Olsen, Jay Devore,
2011
2
The Basics of Social Research
If your sampling frame is in a machine-readable form, such as computer disk or
magnetic tape, a simple random sample can be selected automatically by
computer. (In effect, the computer program numbers the elements in the sampling
frame, ...
3
Research Methodology: Methods and Techniques
Even this relatively easy method of obtaining a random sample can be simplified
in actual practice by the use of random number tables. Various statisticians like
Tippett, Yates, Fisher have prepared tables of random numbers which can be ...
4
Statistics for Business and Economics, Revised
Other methods of probability sampling are described in Section 7.8 Computer-
generated random numbers can also be used to implement the random sample
selection process. Excel provides a functionfor generating random numbers in its
...
David Anderson, Dennis Sweeney, Thomas Williams,
2011
5
Handbook of Survey Research
random sample designs from the standpoint of statistical and cost efficiency.
When simple random sampling was first described, it was noted that this type of
sampling has only limited application in large-scale survey research
investigations.
Peter V. Marsden, James D. Wright,
2010
6
Designing Clinical Research
A systematic sample resembles a simple random sample in first enumerating the
population but differs in that the sample is selected by a preordained periodic
process (e.g., the Framingham approach of taking every second person from a
list ...
7
Data Analysis for the Behavioral Sciences Using SPSS
Suppose too that somehow we are able to determine that if we use simple
random sampling to select a sample of size N = 25, the probability of selecting a
representative sample is high. We then go ahead and select a random sample of
25 ...
Sharon Lawner Weinberg, Sarah Knapp Abramowitz,
2002
8
Research In Psychology: Methods and Design
Random Sampling The simplest form of probability sampling is to take a simple
random sample. In essence, all this means is that each member of the population
has an equal chance ofbeing selected as a member ofthe sample. To select a ...
9
Statistics Using SPSS: An Integrative Approach
Suppose too that somehow we are able to determine that, if we use simple
random sampling to select a sample of size N 25,the probability of selecting a
representative sample is high.We then go ahead and select a random sample of
25 fifth ...
Sharon Lawner Weinberg, Sarah Knapp Abramowitz,
2008
10
Essentials of Marketing
probability sample A sample in which every element in the population has a
known statistical likelihood of being selected. random sample A sample arranged
in such a way that every element of the population has an equal chance of being
...
Charles Lamb, Joe Hair, Carl McDaniel,
2008
ȘTIRI NOI CARE INCLUD TERMENUL «RANDOM SAMPLE»
Află ce ziare naționale și internaționale au scris despre și cum este întrebuințat termenul
random sample în contextul următoarelor știri.
Maggi Row: Karnataka Government Orders Random Sample Lifting …
BENGALURU: The Karnataka government today ordered random lifting of samples of Maggi noodles from across the state for laboratory testing after allegations ... «The New Indian Express, Iun 15»
Americans Still Spending More, Still Not on What They Want
23-March 3, 2015, with a random sample of 1,525 adults, aged 18 and older, living in all 50 U.S. states and the District of Columbia. For results based on the ... «Gallup.com, Mai 15»
Americans' Satisfaction With Direction of US Wanes
Results for this Gallup poll are based on telephone interviews conducted May 6-10, 2015, with a random sample of 1,024 adults, aged 18 and older, living in all ... «Gallup.com, Mai 15»
Lawmakers Look to Limit TSA Precheck's Low-Risk, Random …
Lawmakers Look to Limit TSA Precheck's Low-Risk, Random Sample Program ... I do not have confidence that TSA's use of random or case-by-case, on-site ... «Skift, Mai 15»
In US, Fewer Non-Homeowners Expect to Buy Home
Results for this Gallup poll are based on telephone interviews conducted April 9-12, 2015, with a random sample of 1,015 adults, aged 18 and older, living in all ... «Gallup.com, Apr 15»
Jeni's testing finds more listeria at its Columbus ice-cream plant
Inspectors check random samples of final products for coliform bacteria and other issues but do not test for pathogens such as listeria. The dairy division last ... «Columbus Dispatch, Apr 15»
Punjab to take random samples from poultry farms to fight avian flu
PATIALA: Suspecting that avian flu may hit poultry industry of Punjab, the state Animal husbandry department has stepped up surveillance and ordered random ... «Times of India, Dec 14»
Oh, Rats! They Don't Outnumber People in NYC After All
To estimate animal populations, ecologists often use a "capture–recapture" method. First, researchers capture and mark a random sample of a species, and then ... «NBCNews.com, Nov 14»
Pollsters keep chasing elusive random sample
“Using statistical inference to generalize from a small random sample is sort of magical, with a sample of several hundred to a thousand people projecting to the ... «CommonWealth magazine, Oct 14»
At AT&T Stores, Hype For Amazon's Fire Phone But Apple's iPhone …
Late last week the firm asked a random sample of nearly 600 U.S. iPhone and Android users if they had heard of the Amazon phone and if they'd consider ... «International Business Times, Iul 14»