In stratified sampling, the sampling is done on elements within each stratum. In stratified sampling, a random sample is drawn from each of the strata, whereas in cluster sampling only the selected clusters are sampled.
The main difference between cluster sampling and stratified sampling is that in cluster sampling the cluster is treated as the sampling unit so sampling is done on a population of clusters (at least in the first stage). In stratified sampling, the sampling is done on elements within each stratum.
Here 25 classes are selected as clusters and all the students in the class are surveyed
Hence it is cluster sampling.
The situation is classified as Cluster sampling.
Classify the situation as stratified random sampling, systematic random sampling, or cluster sampling A college decided...
Identify the type of sampling used (random, systematic, convenience, stratified, or cluster sampling) in the situation described below. A researcher selects every 452th social security number and surveys the corresponding person. Which type of sampling did the researcher use? O O O O O Convenience sampling Cluster sampling Random sampling Systematic sampling Stratified sampling
Identify the type of sampling used (random, systematic, convenience, stratified, or cluster sampling) in the situation described below. A womanwoman is selected by a marketing company to participate in a paid focus group. The company says that the womanwoman was selected because everyoneeveryone inin threethree randomlyrandomly selectedselected townstowns waswas beingbeing selected.selected. nothing nothing Which type of sampling did the marketing company use? ClusterCluster sampling RandomRandom sampling ConvenienceConvenience sampling SystematicSystematic sampling StratifiedStratified sampling
Identify which of these types of sampling is used random, systematic, convenience, stratified, or cluster A market researcher has randomly selected four neighborhoods in a certain region She is surveying all the people from each neighborhood What type of sampling is used? O systematic sampling O random sampling O convenience sampling O stratified sampling cluster sampling
1.3.9 Identify the type of sampling used (random, systematic, convenience, stratified, or cluster sampling) in the situation described below A researcher selects every 978th social security number and surveys the corresponding person. Which type of sampling did the researcher use? OCluster sampling O Convenience sampling O Random sampling O stratified sampling O Systematic sampling
Determine whether the following should be classified as simple random, systematic, convenience, stratified, or cluster sampling. 1. Church members are each assigned a number and then a random-number table is used to select the members who will complete the survey 2. Ten students from every 8:00 MWF math class at Tech are selected to complete a survey 3. Every 15th person who enters a local store is selected and asked questions regarding the cleanliness of the store 4. Five students...
Determine the type of sampling used: systematic, convenience, stratified, or cluster. To conduct a survey of the interest of U.S. citizens in Yellowstone National Park, a list of zipcodes is compiled. All citizens in 50 different zipcodes are selected to be mailed a survey. Select one: a. Stratified b. Cluster c. Systematic o d. Convenience
Identify which of these types of sampling is used: random, systematic, convenience, stratified, or cluster. To determine her air qualityair quality, KeriKeri divides up her day into three parts: morning, afternoon, and evening. She then measures her air qualityair quality at 22 randomly selected times during each part of the day. What type of sampling is used? Random Stratified Cluster Systematic Convenience
1. A study is conducted among first year undergraduate students in a US College of Nursing. From a list of these students, every 10th student is selected for an interview. Which of the following sampling strategies is being used? a) Simple random sampling b) Systematic sampling c) Stratified random sampling d) Cluster sampling 2. A study is conducted among first year nursing students in a US College of Nursing. Students are first grouped according to the state in which they...
Put the following sampling situations in the order 1. Cluster 2. Systematic 3. Stratified 4. Simple Random options: A) As the people entered the airport every 8th person was sniffed by the police dog. B) From a large college campus everyone taking a statistics course is selected to complete a survey. C) From each grocery store in the city a the price of three random cans of soup is collected. D) By using current student numbers a select group of...
Identify which type of sampling is used: random, stratified, cluster, convenience, voluntary response, or systematic. 1. A local business man attends a community event highlighting local businesses and asks attendees how they feel about one of his new products. 2. A large company drug tests its employees once a month. It is too expensive to test all the employees so the company assigns a number to each employee and has a computer randomly generate 15 numbers each month. The numbers...