Statıstıcs II (ENG)
Ünite Sınavı Soruları
- 20 soru
- Soru metinleri açık; şıklar ve cevap anahtarı uygulamada
- 1
"If all the members in selected clusters are included in the sample, the method is called ______________. If only a sample of members taken from the clusters are included in the sample, the sampling method is ______________."
Which of the following correctly completes the blanks with the right order?
- 2
In Eskisehir, 10 students were selected randomly from each of 3 universities to participate in a survey. Which type of sampling method was used?
- 3
Which one of the following is a nonprobability sampling method?
- 4
Systematic sampling : sample size is 1024, number of members in the population is 16, random starting point is 257. What is the order of the 3rd sample point?
- 5
Which one of the following is a non-probability sampling method?
- 6
Which sampling method provides observation of habits, opinions, and viewpoints in the easiest possible manner?
- 7
Which of the following is correct about the sampling process?
- 8
The titles of term projects for psychology course were written separetely on pieces of papers then placed in a black box. Then, student A selected 2 papers from the box. Which type of sampling methods was used in this sampling ?
- 9
Population of university A is 20000, population of engineering students is 5000 (25 % take statistics course), population of psychology students is 400 (25 % take statistics course), population of statistics students is 400. How many people are there in the target population for a survey about statistics courses?
- 10
Consider a sample of five firms from a population of 20 firms. If the sampling procedure gives each combination an equal probability, how many different samples are there?
- 11
I. Quota Sampling
II. Cluster Sampling
III. Stratified SamplingWhich of the above is (or are) considered as non-probability sampling?
- 12
A survey was conducted on parents’ of 1000 students from 50 schools chosen by a cluster sampling method from among the public, private, and technical high schools in a city. The researchers visited the schools and selected students by using a list of random numbers based on the school’s size.
Which method of sampling is described above?
- 13
In which sampling methods the sample includes the individiuals which are ready and availiable?
- 14
___________________ is the universe to be sampled, such as all Turkish people, all universities in Turkey, all pregnant women over 40 years of age, all adult males who smoke 20 cigarettes or more daily, or all the buildings in Eskişehir, Turkey?
- 15
A researcher decides to use systematic sampling. The population to be researched has a member of 3.380 and the sample size is 65 units. If the researcher starts sampling form the 15th unit, which of the following is one of the units to be sampled?
- 16
Which one of the following is not a probability sampling method?
- 17
A researcher wants to compute the mean weight of a certain product produced by a firm. The firm produces 8000 products per day and each product has a serial number from 1 to 8000. The researcher decide to choose 80 products in order to compute average weight. He chooses the products with serial numbers 3, 103, 203,303, 403, 503......7903. Which method of sampling did the researcher apllied?
- 18
Which sampling method relies on naturally occurring group of units in the population?
- 19
If a research team have a suspicion that sampling may lead to a bias, which sampling method is most likely the one used in the study?
- 20
In stratified sampling method, the target population is synthetically divided into homogenous subgroups based on some characteristics. Which of the following is the correct term for these homogeneous subgroups?