CO OZNACZA SŁOWO RANDOM SAMPLE
Pobieranie próbek (statystyki)
W statystykach, zapewnieniu jakości, metodologia badania, pobieranie próbek dotyczy wyboru podgrupy osób z populacji statystycznej w celu oszacowania charakterystyki całej populacji. Każda obserwacja mierzy jedną lub więcej właściwości obserwowalnych ciał wyróżnionych jako niezależne przedmioty lub jednostki. W próbkach ankietowych można zastosować odważniki do danych w celu dostosowania do projektu próbki, w szczególności do pobierania próbek warstwowych. Wyniki teorii prawdopodobieństwa i teorii statystycznej są wykorzystywane do prowadzenia praktyki. W badaniach biznesowych i medycznych pobieranie próbek jest powszechnie wykorzystywane do gromadzenia informacji o populacji. Proces pobierania próbek składa się z kilku etapów: ▪ Definiowanie ludności troski ▪ Określanie ramki próbkowania, zestawu elementów lub zdarzeń możliwych do mierzenia ▪ Określanie metody pobierania próbek do wybierania elementów lub zdarzeń z ramki ▪ Określanie wielkości próbki ▪ Wdrożenie próbkowania plan ▪ Pobieranie próbek i gromadzenie danych ▪ Dane, które można wybrać ...
Definicja słowa random sample w słowniku
Definicja losowej próbki w słowniku jest próbą statystyczną opracowaną w celu uniknięcia zakłóceń, tak aby jej dystrybucja była dotknięta tylko przez, a zatem można ją uznać za reprezentującą całą populację.
KSIĄŻKI POWIĄZANE ZE SŁOWEM «RANDOM SAMPLE»
Poznaj użycie słowa
random sample w następujących pozycjach bibliograficznych Książki powiązane ze słowem
random sample oraz krótkie ich fragmenty w celu przedstawienia kontekstu użycia w literaturze.
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
WIADOMOŚCI, KTÓRE ZAWIERAJĄ SŁOWO «RANDOM SAMPLE»
Sprawdź, o czym dyskutuje się w prasie krajowej i zagranicznej oraz jak jest stosowane słowo
random sample w wiadomościach.
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, Cze 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, Maj 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, Maj 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, Maj 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, Kwi 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, Kwi 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, Gru 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, Lis 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, Paz 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, Lip 14»