Roadblock State police set up a roadblock to estimate the percentage of cars with up-to-date registration, insur-ance, and safety inspection stickers. It would be too in-convenient and costly to check every vehicle that passes through a checkpoint, so they decide to stop about 1/20of the vehicles.a) Why would a simple random sample be unreasonablefor this situation.b) Identify two possible sampling schemes that could beused. Explain how randomization would be used in each.

Q: 2. Explain the common characteristics and the difference between bootstrap sampling and the ideal…

A: The sampling involves the process of selecting a subset of individuals from a larger population to…

Q: If the result from a sample survey do not represent the results obtained from Census survey, it is…

A: Solution: Sampling Error :  Sampling errorr have origin in the sampling.  Sampling errors arises due…

Q: What should be taken in the measurement to choose the type of sampling (random, systematic, by…

A: Sampling:   Sampling is the technique that is used to estimating the population and sampling is used…

Q: The government of Canada is interested in assessing the impact of the recent decline in the Canadian…

A: The appropriate sampling technique is to be chosen for deriving a conclusion regarding the impact of…

Q: 3. If the sampling frame used to draw a sample does not include the entire population then…

A: Given that If the sampling frame used to draw a sample doesn't include the entire population then…

Q: MTN Ghana wishes to obtain customers' views on their satisfaction with the service they have…

A: Sampling designs: Simple random sampling: In simple random sampling, all the units in the population…

Q: What are the different types of research design and its obejctives? What are the different types…

A: Research design is the framework of research methods and techniques chosen by a researcher. The…

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: A. What are the goals of random sampling? Can these goals be accomplished by randomizing…

A:

Q: Question

A: Multistage sampling: It is defined as the sampling technique in which the samples are being selected…

Q: An insurance company wishes to obtain customers' views on their satisfaction with the service they…

A: The objective of the question is to understand how to use systematic sampling to select a sample of…

Q: Determine the number of sample that must be taken from each grade level, if 95% decision is…

A: Given information: Year level Number of students enrolled Grade 7 5800 Grade 8 6980 Grade 9…

Q: discuss probability or non-probability sampling, sampling method and sample size.

A: We are asked to discuss the probability and non-probability sampling, sampling methods, and sample…

Q: 4. Hypothesis: A majority of organizations will have job analyses on file for all of their jobs.…

A: Given, The sample proportion is, The null and alternative hypothesis is:

Q: Suppose Diana, an educational researcher at a local university, wants to test the impact of a new…

A: By the given conditions,we haveThis is pair t test in which1) She selects a simple random sample of…

Q: To determine customer opinion of their pricing, Home Depot randomly selects 30 check out lines…

A: It is given that the customer's opinion of their pricing is intended to be determined. For this it…

Q: explain the benefits and disadvantages of having a pilot study participant inside sampling frame

A: Benefits of pilot study participant inside sampling frame:-- * One of the advantages of conducting a…

Q: Sampling is an important technique in your statistical toolkit. However, it is not always…

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

Q: 25.) What is the difference between the value of a sample statistic and the corresponding population…

A: We have given that the information about to the sample statistic and corresponding population…

Q: Explain the following  5 techniques that are used in selecting sample elements out of a population…

A: It is been asked to describe the specified techniques that are used in selecting sample elements out…

Q: When resampling data from two independent​ samples, what is the fundamental difference between…

A: Resampling: Resampling is a technique for improving the reliability and defining the uncertainty of…

Q: The Denver Area Big Organization for Medicine and Business (DA-BOMB) is a not-for-profit consultant…

A: Solution: Stratified random sampling:  Stratified random sampling is a type of prbability sampling…

Q: Identify a case in How to Lie with Statistics of sampling error. Explain the error that the author…

A: Sample survey is method of drawing an inference about the characteristic of population or universe…

Q: . What is the difference between sampling error and sampling bias? Which one is very concerning to…

A: Sampling error is defined as the deviation in the sample values with those of the population. This…

Q: ey on effectiveness of online teaching by collecting data from the teaching staff of various…

A:

Q: A survey is to be conducted for young adults between the ages of 22-29 to determine their level of…

A: Given information: Given that a survey is to be conducted for young adults between the ages of 22 –…

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: What are the differences in sampling with and without replacement and why does that matter?

A: The set of data from which a researcher draws a small unit of data to study the underlying…

Q: Do you think it is possible to create a study where there really is no bias sampling done? How would…

A: Here we are asked if it is possible to create a study where there really is no bias sampling done.

Q: The only way to avoid research bias is to select appropriate sampling technique. Discuss.

A: Given information: The only way to avoid research bias is to select appropriate sampling…

Q: You are conducting a statistical survey of library users. There are approximately 2500 people in the…

A: Total size of the population = 2500 peopleNumber of people to be selected for survey = 25 people

Q: Consider the following random sample of data:   12, 27, 28, 14, 23, 7, 8, 3, 110, 19     a)…

A: Sol:- a) To find the median of the sample data, we first need to arrange the values in ascending…

Q: Let Z1, Z2..., Z6o be independent observations from a distribution Z which is not normal. Suppose it…

A: Since you have posted a multiple questions, we will solve the first complete question and request…

Q: What is the main advantage of simple random sampling (SRS) over cluster sampling   a. SRS is…

A: Given information: Selecting the correct option is the main advantage of SRS over cluster sampling.…

Q: Outline the key components of your sampling scheme.

A: The random Sampling method involves a selection of a group of units that each population unit has an…

Q: A tax auditor has a pile of federal tax returns and she has been directed to randomly select 20 of…

A: Given : A tax auditor has a pile of federal tax returns and she has been directed to randomly select…

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.