International mathematics tests were administered in 10 countries chosen at random. In each country, 20 schools were chosen at random, and 30 students in each school were chosen at random. This sampling technique is known as:  1.cluster 2.systematic 3.stratified 4.multistage

Q: What kind of sampling design is used in each of following cases? A large company surveys 100…

A: Answers: 1.Stratified Random sampling 2. Stratified Random sampling 3. Cluster sampling 4.…

Q: Identify the type of sampling method used by the researcher in each situation: simple random…

A: Simple random sampling : when very object or substance has an equal probability of occurrence.…

Q: Identify the sampling techniques used, and discuss potential sources of bias (if any). Explain.…

A: Given Information: Every tenth person entering a cafeteria is asked to choose his or her favourite…

Q: A sample of households in a community is selected from the telephone directory. In this community,…

A: Undercoverage bias: This bias occurs when some of the elements of the population are inadequately or…

Q: Construct a single sampling plan (OC curve) for the cdata given in the below N= 500 n=

A: From the given information, N=500n=200c=3 That is, we can accept the lot if the number of defectives…

Q: Identify the sampling techniques​ used, and discuss potential sources of bias​ (if any). Explain.…

A: In simple random sampling, each of the unit is population has equal chance of being selected in the…

Q: Design a single sampling plan given p1=0.05, p2=0.15, producer's risk = 0.05, and consumers' risk =…

A:

Q: Identify the type of sampling technique in the situations described below: 1. A quality control…

A: Since you have asked multiple sub parts of the question, we will solve first three sub parts for…

Q: In a study, the sample is chosen by dividing members of the U.S. Congress by the region in which…

A: Given that  In a study, the sample is chosen by dividing members of the U.S. Congress by the region…

Q: 2. In a group of 250 students, how will you select a sample containing 71 students by using the…

A: It is given that  N=250 n=71

Q: After dividing the US states into 4 distinct regions (South, Northeast, Midwest, and West) a simple…

A:

Q: Since the election in the Philippines is approaching, a known state university conducted a survey to…

A: Given that, a known state university conducted a survey to its students on their preferred…

Q: Identify the type of sampling method used by the researcher in each situation: simple random…

A: Since you have posted multiple sub-parts we will solve the first three sub-parts for you. To get the…

Q: Identify the type of sampling used (random, systematic, convenience, stratified, or cluster…

A: We know that the, In a random sampling, each unit of a population has an equal chance of being…

Q: 2. A researcher divided the subjects into 4 groups according to year level and then selected members…

A: The sampling method used in this process is stratified sampling

Q: A researcher is collecting data on college students who go to school in Ohio. If she organizes the…

A: Solution  A convience sampling is the technique of drawing the sample when the researcher dram the…

Q: To estimate the percentage of defects in a recent manufacturing batch, a quality control manager at…

A: Sampling methods: In simple random sampling, all the units in the population have equal chance of…

Q: In a study, the sample is chosen by dividing the population into voting precincts, and sampling…

A: Since Here we first dividing the population in percent and then sampling everyone in selected…

Q: Identify the sampling plan as either cluster, stratified, or 1-in-k systematic samples. A fast-food…

A: Given data A fast food franchise randomly selects nineteen of its stores and surveys all of the…

Q: In a study, the sample is chosen by separating all cars by size, and selecting 10 of each size…

A: Stratified sampling: In stratified sampling the whole population is divided into two or more…

Q: is a sampling technique where the entire population is divided into groups and a random sample of…

A: Sampling: Sampling is a procedure to take the samples from the population. There are four types of…

Q: When a marketing researcher who is performing an exploratory research study has researchers people…

A: The population parameters give us the detail of whole population and is hard to get as we have to…

Q: Determine if the following situations use random or nonrandom sampling technique. Then, identify…

A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and…

Q: A State group is interested in whether voters would support lowering the legal drinking age to 18.…

A:

Q: udy, the sample is chosen by surveying every 3rd driver coming through a tollbooth What is the…

A: A systematic sample is determined by choosing a Kth sample from the population.

Q: Nursing supervisors are selected using random numbers in order to determine annual salaries. Select…

A: It is an example of random sampling because supervisors are randomly choosing nurses from all nurses…

Q: International mathematics tests were administered in 10 countries chosen at random. In each country,…

A: We have given that the statement about to the sampling technique. Here, need to find out that the…

Q: What type of sampling is used? O A. Stratified sampling is used, since the field is divided into…

A: What type of sampling is used:     (A) Stratified

Q: dentify the type of sampling method used by the researcher in each situation: simple random…

A: “Since you have posted a question with multiple sub-parts, we will solve the first three subparts…

Q: In Exercises 9–20, identify which of these types of sampling is used: random, systematic,…

A: Simple random sampling:If a sample of n subjects is selected and every unit in the population has…

Q: A graduating education student is interested to know the engagement of senior high school students…

A: Stratified sampling: In stratified sampling the whole population is divided into two or more…

Q: Identify the sampling techniques used, and discuss potential sources of bias (if any). Explain.…

A: Introduction: It is required to identify the type of sampling, and any potential bias.

Q: 14. Felicia is conducting a survey to determine the determine the favorite TV show among her…

A: Here we want to know the correct sampling method..

Q: Suppose a sample of n=20 students is to be selected from MCBS to represent the college in a national…

A:

Q: 2. The National Agricultural Statistics Service conducts studies of the number of acres devoted to…

A: The National Agricultural Statistic Service manage studies of the number of acres devoted to farms…

Q: From a group of 496 students, every 49th student starting with the 3rd student is selected. Identify…

A:

Q: 1. A researcher wants to study the effects of social media on Grade 11 students in Manila…

A: It was stated that the researcher wants to study the effects of social median on grade 11 students…

Q: n a large city school system with 32 elementary schools (grades 1-5), the school board is…

A: Option e) is correct. This sampling strategy is a voluntary sampling.

Q: A. Identify the type of sampling technique used by the researcher in each situation. 1. The office…

A: Since you have posted a question with multiple subparts, we will solve first 3 sub-parts for you. To…

Q: Identify the sampling method for the following scenario. The Educational Testing Service (ETS)…

A: Given that: ETS divided all colleges into group of similar types. Then randomly selected 3 colleges…

Q: n a study of all 88 Ohio counties, a survey was conducted of all residents of Franklin, Madison, and…

A: Population is the set of all objects of interest. Sample is s subset of the population. It is not…

Q: After a hurricane, a disaster area is divided into 200 equal grids.  Thirty of the grids are…

A:

Q: 1. Identify the sampling technique used to obtain samples in the following situations RANDOM /…

A: Answer of given questions are follows :

Q: Identify the sampling technique used. Based on 13,000 responses from 28,000 questionnaires sent to…

A: To identify the sampling techniques used.

Q: In what is specific type of a sampling technique every 40th member of the population may…

A: A sample is a part of the population. The process of taking samples from the Population is called…

Q: Nursing supervisors are selected using random numbers in order to determine annual salaries. Select…

A: In cluster sampling method, the population is divided into small groups called clusters and then by…

Q: Fiji has more than 330 islands and 110 are permantley inhabiited. A reseracher wants to estimate the…

A: Note: Hey, since there are multiple questions posted, we will answer first question. If you want any…

Q: In a study, the sample is chosen by writing everyones name on a playing card, shuffling the deck,…

A:

Q: For each of the following situations, identify the sampling method used. i. The manager of a company…

A: Simple random sampling (SRS) is a probability based sampling in which we randomly select a subset…

Q: In study of evaluating new educational methods, the students were divided into 5 groups. If a…

A: It is given that the students were divided into 5 groups and researcher selected sample from each…

Types of Bias

Statistics is the study of data collection, organization, analysis, interpretation, and presentation. Statistical bias is a characteristic of a statistical technique or its findings in which the expected value deviates from the actual root quantitative parameter being estimated. According to the actual definition of bias, it refers to the tendency of a statistic to overestimate or underestimate a parameter.