Question
pade2 Name MULTIPLE CHOICE Choose the one alternative that best completes the statement or ans Provide an appropriate response. From a group of 496 students, every 49th student starting with the 3rd student is selected. Identity the type of sampling used in this example. A) Stratified sampling C) Cluster sampling B) Systematic sampling D) Simple random sampling 2) At a college there are 120 freshmen, 90 sophomores, 110 juniors, and 80 seniors. A school administrator selects a simple random sample of 12 of the freshmen, a simple random sample of 9 of the sophomores, a simple random sample of 11 of the juniors, and a simple random sample of 8 of the seniors. She then interviews all the students selected. Identify the type of sampling used in this example A) Systematic random sampling C) Cluster sampling B) Simple random sampling D) Stratified sampling 3) Before premiering a blockbuster movie at a theater, test screenings are done beforehand. A small number of selected theaters are chosen geographically throughout the country. Each theater chosen is supposed to be representative of theatergoers in that area. Everyone is interviewed when the movie is over. Identify the type of sampling used in this example. A) Attempted census C) Stratified sampling B) Cluster sampling D) Systematic sampling 4) A pollster uses a computer to generate 500 random numbers and then interviews the voters corresponding to those numbers. Identify the type of sampling used in this example. A) Stratified sampling C) Systematic random sampling B) Cluster sampling D) Simple random sampling 5) A mega-discount chain store just opened a new clothing store in town emphasizing mainly women's clothing. Before opening, management had to decide whether to only carry either men's women's, boys', girls, or infants' clothing. After performing representative sampling of potential customers from each of these groups,it was decided to carry only women's clothing. Identify the type of sampling used in this example. A) Convenience sampling C) Cluster sampling B) Stratified sampling D) Systematic sampling
Explanation / Answer
Solution:-
1) option B) Systematic sampling
Explanation :- Systematic sampling is a type of probability sampling method in which sample members from a larger population are selected according to a random starting point and a fixed periodic interval. This interval, called the sampling interval, is calculated by dividing the population size by the desired sample size.
2) optio D) stratified sampling
Explanation:- Stratified sampling refers to a type of sampling method . With stratified sampling, the researcher divides the population into separate groups, called strata. Then, a probability sample (often a simple random sample ) is drawn from each group.
3) option B) Cluster sampling
Explanation:- Cluster sampling refers to a type of sampling method . With cluster sampling, the researcher divides the population into separate groups, called clusters. Then, a simple random sample of clusters is selected from the population.
4) option D) Simple random sampling
Explanation:- A simple random sample is a subset of a statistical population in which each member of the subset has an equal probability of being chosen.
5) option B) Stratified sampling
