Rufus Scrimgeour is interested in the rate of raids on Ministry of Magic regional offices.  To do so he randomly selects 5 offices from a list of all offices and collects the number of raids in the past 30 days.  What sampling method did Rufus employ?   Question 3 options:   Systematic   Simple Random   Stratified

Q: Horace Horsecollar is interested in the opinion of vacationers at Disney World. He creates a short…

A: Solution: Option 2 is correct. (Systematic)

Q: There are 150 eighth grade students at Bailey Junior High. To determine which field trip destination…

A: We have given the statement: There are 150 eighth grade students at Bailey Junior High. To determine…

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: A principal wanted to survey students who took a standardized college entry exam about how prepared…

A: In this example each and every student has equal chance of selection.

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: following situations:  a)  A woman in the airport is handing out questionnaires to travelers asking…

A:

Q: If Olivia wants to learn a foreign language to get an idea of how satisfied other students were…

A:

Q: An auto analyst is conducting a satisfaction survey, sampling from a list of 10,000 new car buyers.…

A: Given: Population size, N=10,000 Sample size, n=400

Q: ii. If Olivia wants to learn a foreign language to get an idea of how satisfied other students were…

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

Q: Buy it again? A consumer magazine plans to pollcar owners to see if they are happy enough with…

A:

Q: 2. A) In a study, the sample is chosen by dividing the population by Gender, and choosing 30 people…

A: Stratified sampling. Stratified sampling is a type of sampling method in which the total population…

Q: The Commissioner of Jurors obtains a list of all drivers’ license ID numbers in Oneida County, about…

A: Given that, The Commissioner of Jurors obtains a list of all drivers’ license ID numbers in Oneida…

Q: A student working on her doctorate degree is completing a study on working conditions. Part of her…

A: 1) Sampling with replacement is defined as the method of selecting the units in the sample in such a…

Q: Sigmund Freud is interested in studying the dreams of adolescent boys (aged 10-19) to further his…

A: Simple random sample: A procedure for selecting a sample of size n out of a finite population of…

Q: ina’s target population for her study are employees from the top 500 corporations in the…

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

Q: using dodge-romig plans for AOQL of 3%, determine the sample size if the process average defective…

A:

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

A: In the above question:

Q: know the preference of Marikeños regarding vaccine brand for booster shot, the city health officer…

A: Give that, To know the preference of Marikeños regarding vaccine brand for booster shot, the city…

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: A student poll concludes that 61% of LMU undergraduates live on campus. This poll sampled 100…

A: Here the undergraduates were divided into different strata. And then from each stratum 25 students…

Q: Memorial Day Poll. In the year 2000, an on-line poll was conducted overMemorial Day weekend that…

A: Non-response bias: Non-response bias is a type of bias observed in a data, when a section of the…

Q: To survey clients at a massage-therapy spa, a researcher alphabetically lists all of the customers…

A: Systematic Sampling Researchers calculate the sampling interval by dividing the entire population…

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

A: Note: Hey, since there are multiple subparts posted, we will answer first three subparts. If you…

Q: A Norwich University administrator is trying to determine the proportion of students who have been…

A: Determine if each of the following is an example of a simple random sample, stratified random…

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

Q: 12 A pollster wants to find out if citizens are satisfied with the city council. Which procedure…

A:

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: Jennifer is interested in conducting a study in the amount of money people spend at her local…

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

Q: The superintendent of a large school district wants to test the effectiveness of a new program…

A:

Q: Horace Horsecollar is interested in the opinion of vacationers at Disney World.  He creates a short…

A: The method used by Horace to select the sample is systematic sampling. Systematic sampling is a type…

Q: 7) At 9AM on a Monday, five Starbucks stores are chosen and all customers are asked to participate…

A: Answer:

Q: What sampling method is used when a statistic student did a research on the time spend by grade11…

A: Simple random sampling: A procedure for selecting a sample of size n out of a finite population of…

Q: Niles wants to learn more about British accents, so he divides Great Britain into 12 regions and…

A: Simple random sampling: A procedure for selecting a sample of size n out of a finite population of…

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: 1)Caitlyn has to determine how many of the 120 employees in her work place has comprehensive car…

A: Introduction -  Sampling - Sampling is a process used in statistical analysis in which a…

Q: A manufacturer cloth dealer asked the manufacturer to send four different types of cloths as sample…

A: The manufacturer has 4 types of cloth namely Cotton, Polyester, Silk, Rayon

Q: c) State which sampling method used in the following scenarios i. Select the first 19 customers who…

A: Sampling: It is a technique of selecting individual members or a subset of the population to make…

Q: Gary Chalmers is giving a sample of students at Springfield Elementary School IQ tests. To select…

A: Under simple random sampling, we use randomly  generated table to the participants and pic randomly.

Q: You want to get a probability-based sample to gauge freshmen opinion about the food served on…

A: A simple random sample can be performed as follows We make a list of all the freshers on the campus…

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: Identify the sampling technique used. At a local community college, five statistics classes are…

A: At a local community college, five statistics classes are randomly selected out of 20 and all of the…

Q: c) State which sampling method used in the following scenarios i. Select the first 19 customers who…

A: As per bartleby policy I answered the first question and all subparts

Q: Rufus Scrimgeour is interested in the rate of raids on Ministry of Magic regional offices.  To do so…

A: we know that sampling method used for different

Q: Huck Finn is interested in the average length of catfish in the Mississippi river bordering St.…

A: In simple random sampling procedure, each of the population unit has same chance of being included…

Q: In a US presidential election, the incumbent president wins with 51.5% of the vote to 48.2% for the…

A: Note: Hi! Thank you for the question. As you have posted multiple sub-parts, according to our…

Q: 8. A university polled 500 of its students, randomly selecting them proportional to the number of…

A: Given that a university polled 500 of it's students, randomly selecting them proportional to the…

Q: When every member of the accessible population has an equal chance of being selected to participate…

A:

Q: n a poll of 1000 randomly selected voters in a local election, 701 voters were against fire…

A: n = 1000 Number of voters = 701

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: A. The given population is 3476, n = 528, what will be the value of e (margin of error)? B. If a…

A: The objective is to find margin of error ,and to determine sampling interval of systematic sampling…

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.