Jennifer is interested in conducting a study in the amount of money people spend at her local Starbucks in a week.  To gather her data, on her own trip to Starbucks to get a coffee Jennifer asks the people in line how much they spend.  What sampling technique was used? Cluster Convenience Stratified Systematic

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

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

Q: If you want a poll to have a margin of error of 2.84%, how large will your sample have to be?

A:

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: Decide whether the sampling method is biased or unbiased. Explain your results: 12. The school's…

A: Given that for the allocation of school funds for the media center, a sampling method is used. The…

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 sampling methods?   A large social media company wants to survey its users about their…

A: Sample is a small part (or) portion of the population. For example, to check the weights of male in…

Q: Identify which type of sampling is used.  In an effort to quickly generate a sample, a pollster…

A: Sampling methods: Simple random sampling: In simple random sampling, each unit in the population…

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

A: We know that in Systematic sampling method, we choose the first unit randomly and all the other…

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: 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: 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: Please help me... Choose which sampling was used. *A researcher divides a group of students…

A: Stratified sampling: It is a sampling method in which the entire population is divided into…

Q: The student council invites all students to provide ideas for activities. Which sampling method is…

A: Voluntary response sample: The voluntary response sample is the sample in which the respondents by…

Q: Homer Simpson is interested in studying the ratio of the various colors of sprinkles on Lard Lad…

A: Introduction: Here, it is not mentioned whether the three donuts of each variety are chosen randomly…

Q: Identify which type of sampling is used: random, systematic, convenience, stratified, or cluster. To…

A: Customer opinion of their pricing, Amtrak randomly selects 40 trains during a certain week and…

Q: A sample was taken by randomly selecting one student from the administration’s official list of…

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

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

A:

Q: In a survey of 671 subjects, each was asked how often he or she watched TV. The survey subjects were…

A: Voluntary response sampling: In voluntary response sampling, the respondents select themselves into…

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: 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: 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: A city's telephone book lists 300,000 people. If the telephone book is the frame for a study, how…

A: Here population size, N=300000 Systematic sample is done on every 100th person i.e sampling interval…

Q: Suppose 50% of all voters in a population support a politican, SHARE What is the zscore of sample…

A:

Q: Renee works as a quality control officer at a lumber yard. She selects every 200th two-by-four that…

A: In systematic sampling we divide the population in N equal sub population then we select every kth…

Q: A medical researcher interviews a random sample of 20 cancer patient from a list of cancer patients…

A:

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: For the scenarios below, determine which sampling method was used (simple random, cluster,…

A:

Q: A geography student in Parkville, Missouri is conducting a housing survey, including questions about…

A: It is given that she knows that about 38% of the people in Parkville live in apartments, and wants…

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…

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.