Sampling Method What type of sampling best describes the way in which the 717 subjects were chosen: simple random sample, systematic sample, convenience sample, stratified sample, cluster sample? Does the method of sampling appear to adversely affect the quality of the results?

Q: Replacement Why does the bootstrap method require sampling with replacement? What would happen if we…

A: Explanation:In the bootstrap method, the sample should be taken with a replacement. If the sample is…

Q: Test for sample proportions are always two-tailed. Determine whether the statement is true or…

A: In general, we will decide the test based on the alternative hypothesis.

Q: What sampling method was used?

A: 100 students was required to estimate the mean achievement in research of graduatestudents. The…

Q: The Department of Health is conducting random drug testing in a barangay in relation to their age.…

A: Given information: The researcher have to randomly select 10 students. Let the randomly selected 10…

Q: Describe how to obtain a sample of eight people in that classroom so that the result is a sample of…

A: Systematic sampling: Suppose that the N units in the population are numbered 1 to N in some order.…

Q: The US Department of Health and Human Services wants to know whether the healthcare system is…

A: a) Our population of Interest " Population of Virginia" Sample : " 65,439 people who live in the…

Q: et's say we wanted to do research on medical students and we wanted to know if board scores…

A: In cluster sampling, the population is divided into naturally occurring groups/sections called…

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

A:

Q: To predict the outcome of an election, 2500 likely voters are randomly selected to take a survey.…

A: Random Sampling It is the sampling technique where each unit of the population has an equal chance…

Q: The International Shark Attack File recorded the number of shark attacks between 1837 and 2016.…

A: The sample variance is calculated below:

Q: Researchers waited outside a restaurant. They stopped every 12th person who came out of the…

A: Systematic sampling method : In systematic sampling, the target population is ordered and the sample…

Q: What is Random Sampling? Give example of it.

A:

Q: People on the street" interviews is example of systematic sampling

A: Answer is Convenience sampling.

Q: Explain Sampling Distribution of a Sample Proportion and how does it affect the parameters and…

A: Sampling Distribution of sample Proportion: The sampling distribution of proportion measures the…

Q: 1. What is sampling in an environmental study? Why we do sampling? On the basis of various types of…

A: Sampling is defined as a subset of the population which represents the entire population. A proper…

Q: A large university wants to find out whether it is adequately serving the needs of its students who…

A: Answer: Option 4. Cluster sampling

Q: 11 What is the best sampling technique to use for determining the average speed of the cars on a…

A:

Q: I want to survey college students about the helpfulness of an academic success video. I want to use…

A: The population is divided into homogeneous groups called strata in stratified random sampling. The…

Q: 4. Describe how you collected your sample, do you think your sample is represen Discuss any sources…

A: Given a Pie Chart, we can get easily the proportions of sunfish, bass and carp

Q: The California State University (CSU) system consists of 23 campuses, from San Diego State in the…

A: Enumeration is the study which explains, evaluate and describe the existing conditions with the…

Q: researcher decided to study the dietary habits of community college students. She did so in a way to…

A: Solution: The sampling methods can be classified into two types 1) Probability or random sampling…

Q: You are doing research on students and you are interested in looking at the differences among…

A: Given that, The collected 100 response from each class. i.e. 100 freshmen, 100 sophomores, 100…

Q: sample of 10 rice farms in Pila, Laguna was taken using systematic sampling with a sampling rate of…

A: Given data, A sample of 10 rice farms in Pila No of farms say irritated(Yes) is 5 No of farms say…

Q: An important part of employee compensation is a benefits package, which might include health…

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

Q: A researcher wishes to determine if there is an association between age and life-contentment. To do…

A: Observational studies are those studies in which the investigator observes and derive conclusions…

Q: 2. Sampling Error. What is a sampling error? How does it differ from other sources of error? In…

A:

Q: You may be conducting a study on why high school students choose community college over university.…

A:

Q: Explain the difference between cluster sampling and stratified random sampling

A: Random sampling: In random sampling method, each units in the population has equal chance to be…

Q: The California State University (CSU) system consists  of 23 campuses, from San Diego State in the…

A: Given Information: From San Diego State in the south to Humboldt State close to the Oregon border,…

Q: 1. What is sampling in an environmental study? Why we do sampling? On the basis of various types of…

A: Let's say we want to analyze the materials in a lake, it is obviously impossible to analyze all the…

Q: 10. Systematic random sampling is used to interview residents in 25% of 80 apartments in a building.…

A: Solution: Given information : Total apartments = 80 N = 80 Population size  Systematic random…

Q: A college wants to know how many students work while attending school. It surveys students who eat…

A: The social desirability bias is a type of response bias in which the participants answer the…

Q: simple random sampling and stratified random sampling,

A: Simple random Sampling having two methods that is 1)  simple random sampling with Replacement  2)…

Q: True or False? When calculating the sample size for a research study, a researcher should always…

A: Sample size, n: The sample size represents the number of observations in the sample. It is denoted…

Q: Identify which of these types of sampling is used: random, systematic, convenience, stratified, or…

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

Q: John F. Kennedy. In one of his books, Ted Sorenson, Special Counsel to President John F. Kennedy,…

A: Systematic sampling: Systematic sampling involves first considering a starting point for selecting…

Q: A company has been rating television programs for more than 60 years. It uses several sampling​…

A: Stratification is the process of dividing members of the population into homogeneous subgroups…

Q: Identify which of these types of sampling is used: random, systematic, convenience, stratified, or…

A: Given, A large company wants to administer a satisfaction survey to its current customers. Using…

Q: Knowing that you need a sample pool of 536 students to ultimately get about 250 students in your…

A: From the given information, total number of students listed in the student directory N = 5000. Total…

Q: What is the difference between sampling and  permutation

A: Given Sampling and Permutation  We have to write the difference between sampling and permutation.

Q: identify the method of sampling used?

A: Simple Random sampling: This is the method of sampling in which each sample gets an equal chance to…

Q: Systematic random sampling is easier to execute than simple random sampling and usually provides…

A: Systematic sampling is a type of sampling in which every kth member is included in the sample after…

Q: The Department of Health is conducting random drug testing in a barangay in relation to their age.…

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

Q: The school canteen is doing a survey on the food preferences of the students. They printed 100…

A: The appropriate sampling technique is to be defined for the 100 students (considering a single form…

Q: Identify the sampling method that was used. Customers in the Sunrise Coffee Shop are asked how much…

A: Random Sampling: Each sample has an equal probability of being chosen Stratified Sampling: The…

Q: A marketing expert for a particular chain of restaurants is planning a survey in which 510 people…

A: Given data a marketing expert for a particular chain of restaurantsis planning a survey in which 510…

Q: The California State University (CSU) system consists of 23 campuses, from San Diego State in the…

A: Study based on the judgement of result is known as enumeration study. It is the study based on the…

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.