Identify the type of sampling method used by the researcher in each situation: simple random sampling, systematic sampling, stratified sampling, or cluster sampling.

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

A: A stratified sample is used for a heterogeneous population. The heterogeneous population we…

Q: A researcher decided to gather data from all 150 employees in a certain office instead of just…

A: A certain office has 150 employees. All of them are selected by a researcher to gather data from.

Q: the data were collected by asking the first 111 people who entered the store, then the type of…

A:

Q: To determine her heart rate, Samantha divides up her day into three parts: morning, afternoon, and…

A: We have given a sampling process just we need to name the sampling design.

Q: Mrs. Feleo samples her class by selecting every ninth person on her class list. Which type of…

A: Mrs. Feleo samples her class by selecting every ninth person on her class list

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: A political scientist is interested in the effect of government type on economic development. She…

A: Observational Stratified study should she use to ensure that countries are selected from each region…

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

A: i) Here population will be the all 120 employees in Caitlyn's work place. ii) Here she use…

Q: Nocaf Drinks, Inc., a producer of decaffeinated coffee, bottles Nocaf. Each bottle should have a net…

A: The provided information is as follows:The data set is given as: SampleSample RangeSample…

Q: A researcher divided subjects into two groups according to gender and then selected 200 members from…

A: Since we know that In stratified sampling we divided homogeneous groups from the heterogeneous…

Q: Henry conducts a survey at his middle school to determine the students' favorite after-school…

A: There are four main types of probability sample. Simple random sample: In this, every member of the…

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

A: Given : To determine her breathing rate, Britney divides up her day into three parts: morning,…

Q: The owner of a local bar specializing in alternative music wanted to determine the average age of…

A: t 95% confidence level, the z value is 1.96 which can be obtained by using the standard normal…

Q: Determine which Sample Type is used in  the following scenarios.   President Biden want to survey…

A: A population is the set of all objects of interest. A sample is a subset of the population. It is…

Q: Colin is a student in a consumer mathematics class creating a report on the annual interest rates of…

A: Using excel, the required z-score for each type of bank can be calculated as; 1. Enter the data into…

Q: The director of library services at a college did a survey of types of books (by subject) in the…

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

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: The amount spent on textbooks for the fall term was recorded for a sample of five university…

A: According to the provided information, the data are $400, $350, $600, $525, and $450

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: Raymond wants to estimate the percentage of parents that use cloth diapers. He asks a randomly…

A: According to the provided information, The data set will represent the collection of response…

Q: I only have one attempt at this. I need help please.  Marc takes a random sample of 14 dogs from…

A: Given data is,9,25,32,40,41,45,47,50,53,53,62,79,94,106given data is already arranged in ascending…

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

A: In Britney's case:- The entire day is her "population".- She divides this day into three distinct…

Q: A school board would like to determine whether there is a difference in average SAT scores for…

A: Paired data is used when experimental Unit is same on which two different treatment are apllied

Q: As part of a sixth-grade class project the teacher brings to class a large jar containing 200…

A: Given, Population size = 200 Sample size = 25 Red gumballs = 15 Green gumballs = 10

Q: Q. Mrs. Trahan samples her class by picking 10 numbers from her hat and each number is assigned to a…

A: Given that Mrs. Trahan samples her class by picking 10 numbers from her hat and each number is…

Q: Of the 150 students in the third year group at a school, 60 are boys. Stratified random sampling was…

A:

Q: For a research project, students are asked to study how often students at an online high school look…

A: We have to answer the advantage and disadvantage of using observation in the given question.

Q: A senior high school teacher is interested in knowing the average number of hours a teacher works in…

A: A senior high school teacher is interested in knowing the average number of hours a teacher works in…

Q: Determine the sample in this research scenario: Dr. Eglovitch wants to know whether type of…

A: Sample is the number of people under the observation for study

Q: Match each of the following to the type of sampling technique used: The researchers list all of the…

A: Solution Simple Random Sampling  A simple random sample (SRS) of size n is a sample that is selected…

Q: Determine which Sample Type is used in  the following scenarios.   President Biden want to survey…

A: A sample is a group of objects taken from a large population. There are various methods by which…

Q: oms. The researcher picks 2 of the 4 classrooms and asks every 1st grader in the 2 classrooms what…

A: A researcher studying allergies to animals is interested in performing a study at the local…

Q: As part of a sixth-grade class project the teacher brings to class a large jar containing 200…

A:

Q: Identify the sampling techniques used in each scenario. a candidate for the local school board…

A: Here, survey of parents pick up their children last month.

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.