Please correctly identify the following sample by naming the sampling techniques used, whether it's systematic, cluster, convenient, simple or stratified. Sample: A physician decides to take a random sample of patient chart for the last 5 years at a large metropolitan hospital to study the frequency of cancer cases as that hospital. He estimates the number of charts to be 10,000 and decided to take a sample of 500 charts. He decided to randomly select a number between 1 and 20 and then study every 20th chart beginning with that number.

Q: A university is polling its students. It selects 200 students at random in the same proportions as…

A: Stratified random sampling is a process of sampling which uses different groups of the population…

Q: Which type of sampling method is used in the following? 20 people from each dorm are asked to fill…

A: In simple random sampling, the samples are chosen at random from the whole population. In cluster…

Q: uppose you take random samples from the following groups: freshmen, sophomores, juniors, and…

A: Stratified Random Sampling: The population is divided into subgroups then some members are chosen…

Q: What is the sampling error for an estimate of the population proportion, p = 0.36, if the true…

A: We have to find the sampling error for an estimate of the population proportion

Q: A sample of students is collected by randomly selecting 20 students from each of the 58 community…

A: It is specified that 20 students from each of 58 community colleges are randomly sampled.The…

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

A: Answer:- Given statement is, "A sample consists of every 3rd student from Professor Cuellar’s…

Q: entering your work cafeteria and are approached by an individual to participate in their study by…

A: Given that  You are entering your work cafeteria and are approached by an individual to participate…

Q: Nationally, 83% of Americans have earned a high school diploma.  We want to see if the proportion of…

A: We have to find sample proportion.

Q: What sampling techniques should be used while establishing if someone is happy or not?

A: Here we want to establish sampling technique if someone happy or not.

Q: Your research methods class has been given an assignment to measure the student body of your…

A: In sampling, a subset is selected from a population for analysis and research. In some cases, the…

Q: In your "Introduction to College Mathematics" class last semester, the instructor gave four tests.…

A: Given Scores90, 86, 70 , 80Possible sample size will be 1,2,3,4The data has been entered into excel…

Q: Why is a sample proportion generally used to estimate a population proportion instead of obtaining…

A: Population proportion: The proportion that is calculated from the population which has a specific…

Q: Explain the concept ofrepresentative sampling.

A: Representative sampling: A representative sample is a subset of a population that seeks to correctly…

Q: Among the random and non-random sampling techniques that we have, which do you think is the most…

A: Random/Probability sampling is a technique in which each member of the population has an equal and…

Q: There are six sisters and a family. Their ages are 7 years, 10 years, 15 years, 15 years, 20 years,…

A: Assume that the random variable x defines the ages of the sisters in the family.

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: List two ways to identify a simple random sample.

A: Definition: Simple random sampling is defined as a sampling technique where every item in the…

Q: Online gamers are divided into different age groups. A random sample from each group is selected and…

A: From the given information we want to know method of sampling.

Q: How can you make your sampling method more reliable? (English Translation: List a way you could make…

A: Introduction: Sampling is done in practical life instead of a population census, in most of the…

Q: After a Sampling Plan is developed- what are the steps in sampling?

A: Sampling: In statistical analysis, the sampling is defined as selection of subjects from the…

Q: Prof. Badalian wants to know the ages of moviegoers who go to see Star Wars. If he survey everyone,…

A: Systematic sampling can be defined as selecting the sample from  the large population according to…

Q: Why does this a situation call for a matched-pairs analysis?

A: Test is that whether there is difference between the measurements.

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

A: Given information- We have given that 3 samples are taken from Sophomore, Junior, and Senior class.…

Q: A balance used in an entomology lab to weigh grasshoppers is quite old and has been used for…

A:

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: Identify which type of sampling is used.  Every 5th student on the roster is selected for a sample

A:

Q: ethod? Select all that apply

A: Sampling Methods: The sampling methods are classified into 2 types  Random Sampling or…

Q: Given 1,400 freshmen students with 600 male students and 800 female students, describe the way you…

A: Given: Total population, N = 1400           Gender wise total population, for males, N1 = 600 and…

Q: In the Star and Tribune newspaper, there is an article entitled “1 in 8 school buses fail tests."…

A: Given information: Sample of 200 buses and find that 20 buses fail the safety inspection. Let us…

Q: ve bi

A: It would be better if we enquire with all students, when the strength of class students is little.…

Q: Explain how a sampling distribution of a sample can be constructed.

A:

Q: Identify which sampling method is applied for each situation.

A: Given :

Q: If we took three different samples of college students (one from California, one from Arizona, and…

A: The samples are derived of 500 students from three cities, city C, city AR and city AL.

Q: Discuss the sampling method that you think was used for this research

A: Four types of sampling methods: Random  : samples choosen randomly, every member of population has…

Q: If 471 households were surveyed out of which 385 households have internet fiber cable, what is the…

A: Among 471 households 385 households have internet fiber cable, therefore 471-385 = 86 households…

Q: Q.No.3. Explain the advantage of mutiple sampling plan over single or double sampling. Answer:

A: Multiple sampling plan is an extension of single and double sampling plan.

Q: Why a casual or haphazard sample doesn’t qualify as a random sample?

A: Haphazard or casual sampling is where we try to create a random sample by haphazardly or casually…

Q: Show how you would use systematic sampling to select 100 samples of sale orders from an ordered file…

A: Systematic sampling: When the population units occur in a sequence or pattern and a sample of size n…

Q: A coach is interested in how many slam dunks the average college freshman at his university can do.…

A: Population:Population consists of the complete subjects that are included in the study for making…

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.