Question 2: (i) Describe how stratified random sampling is performed and explain how it differs from quota sampling. (ii)A company producing handheld electronic devices (tablets, mobile phones etc.) wants to understand how people of different ages rate its products. For this reason, the company’s management has decided to use a survey of its customers and has asked you to devise an appropriate random sampling scheme. Outline the key components of your sampling scheme.

Q: You are required to test at the 5% level of significance the hypothesis that the average monthly…

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

Q: ods which might be use to select the sample households.

A: Answer Specifically for an outsized population, the tactic that is additional in usage is sampling,…

Q: Do answer and explain reason.  Statistical inference is the process of _____. a. using data from a…

A: statistical inference is a method by which interference about a population is made, based on sample…

Q: A television station wishes to study the relationship between viewership of its 11 p.m. news program…

A: 18 or less 19 to 35 36 to 54 55 or older Total Yes 32 55 69 81 237 No 218 195 181 169 763…

Q: 7. The County Clerk mailed a survey to a total of 500 voters. The sample included 125 voters…

A: From a total of 500 voters, 125 voters are selected randomly from each of the registered groups. In…

Q: (f) Regression line drawn by the method of Least square is called as the line of (g) Link Relatives…

A: (f) Regression line drawn by the method of Least square is called as the line of    best fit   .…

Q: what kind of sampling technique would you choose, if your objective is to compose a representative…

A: unlimited wants. For production, raw materials are used as inputs and processes through machinery…

Q: Define the population from which the sample is to be drawn. Specify the population frame from which…

A: Sampling in economics is the process or method in which a part of the population commonly termed as…

Q: QUESTION 23 A lab technician realizes the test he had just conducted gave him a false negative…

A: When a test that has been conducted shows a false negative result it is considered to be A type 2…

Q: You need to undertake a face - to - face interview survey of managing directors of small to medium -…

A: Quota sampling would be preferred. In this sampling instead of 400 respondents,less number of…

Q: Read the executive summary thoroughly and attempt the questions given below: The prevailing of fast…

A:

Q: In the following scenario what is the population and sample. In a study of Monarch butterflies, 55…

A: Population refers to the entire set of items or individuals which is of interest when conducting a…

Q: As you know from the classes after you are done with the questionnaire, you have to sample the…

A: Sampling can be either probability or nonprobability: Sampling using probability is as follows: 1-…

Q: Suppose you want to determine the reading literacy of freshmen college students in NJ. Describe how…

A: These are different methods of sampling. The steps that will be followed in each case are :   Part…

Q: Fifty randomly selected adults who follow professional sports were asked to name Their favourite…

A:

Q: A________________________consists of a limited number of people from the overall population,…

A: The survey and poll are quantitative methods for collecting information from a large number of…

Q: “Business Ethics is the application of ethical and moral principles or in a business environment. It…

A:

Q: Identify the sampling technique used.   A researcher randomly selected 35 of the​ nation's middle…

A: A researcher randomly selected 35 of the​ nation's middle schools and interviewed all of the…

Q: five-star restaurant has the business objective of improving customer waiting time during the…

A: The mean of the two groups is: Location 1 mean= 4.29 Location 2 mean = 7.11 The standard deviation…

Q: A political pollster wants to ensure that their poll on attitudes toward separation of church and…

A: Here use basic definition of cluster sampling and frequency  Cluster sampling  : here population…

Q: An alumni coordinator is interested in studying the performance of CoE EM alumni. She clustered the…

A: Cluster sampling is a probability sampling approach that divides the population into different…

Q: A research group claims that 20% of patients with dementia never develop full Alzheimer's. In a…

A: Given: Number of patients (n) = 1000 Number of patients that reported that they never develop full…

Q: You need to research about (Personal finance management) using a sample . Describe the steps to be…

A: Steps of stratified sampling technique Stratified sampling involves stratifying the population into…

Q: QUESTION 10 Large confidence intervals reflect greater accuracy or scientific validity of a poll’s…

A: 10. False large confidence levels has a higher margin errors so there is a less chance of accurancy.…

Q: Last year, the managers of a company earned $40,000 and the assistant managers earned $35,000. After…

A: It is given that the managers of the company earned a salary of $40,000 and the assistant managers…

Q: A study was done in 1998 by Dr. Benjamin Levine to explore the role of altitude training in athletic…

A: The use of advanced training to recommend a standard level of training is widely used by advisors…

Q: QUESTION 1 A librarian of a private college wishes to conduct a study on student's satisfaction…

A: a) Population: Population is the total amount of items or events which are of some interest to the…

Q: 1.In econometrics, a sample is Select one: a. the entire group of entities that we are interested…

A: Since you have posted multiple questions so as per answering guideline, we will solve first…

Q: Following are the marks obtained by a batch of 10 students in a certain class test in Statistics (X)…

A: In the given table, marks of statistics and accountancy of 10 students are given.

Q: This type of qualitative sampling should be capped at a certain number of participants to that…

A: Sampling: Sampling is a method or technique in which the entire population size is not taken but…

Q: The following are auditor judgments and attributes samplingresults for six populations. Assume large…

A: Here, Actual sample size Initial sample size SER CUBER from Table 15-9 TER 1 100…

Q: the college of science surveys its graduating students to determine the starting salaries and the…

A: Given, n=100 courses Number of students BS-Biology 85 BSM-CS 102 BSM-BA 78 BSM-AS 75…

Q: Explain in details the importance of collecting a representative sample to answer a question about a…

A: Representative sampling is a type of sampling that reflects the accurate characteristics of the…

Q: a) The University of the East Europe is interested in the overall performance of its students in the…

A: A "population of interest" is a population or group from which a researcher attempts to draw…

Q: A researcher wants to study the behaviours of postgraduate students in Australia in mobile phone…

A: Source of data is very important for any research, selection of appropriate source of data help…

Q: LA researcher is collecting individual data by asking visitors in a train station in a medium sized…

A: Random sampling: It refers to the method under which the sample is selected on the basis of…

Q: Additional Problems: need letter D and #2 1. Respond to all parts of the following problem (this is…

A: According to the given information, the American community survey collects information in the US. In…

Q: Tourism patterns are difficult to forecast; they normally vary from country to country and sometimes…

A: Answer - Need to find - Would you conclude that the patterns are the same in the two cities Given in…

Q: QUESTION 8 Having many relevant instruments: a. is good because they provide more information. D. is…

A: When making economic analysis, various aspects are considered for an effective regression model.

Q: Consider the following hypothetical pooled cross-sectional data of daily COVID-19 cases per 1,000…

A: Given: Cases reported when there is no lockdown   State March (cases per 1000) April (cases per…

Q: E. coli cells were infected with two strains of T4 virus. One strain is minute (m), rapid lysis (r),…

A: The parental genotypes are + + + and m r t. For determining the m–r distance, the recombinant…

Q: Bank clients were asked to indicate their level of satisfaction with the service provided by the…

A: The data can be plotted on a graph and the graph or diagrams can be many like the bar diagram, line…

Q: A researcher wishes to conduct a study to determine the effects of an intervention on high school…

A: Researchers study and analyze the information and data on a certain topic to establish correlation…

Q: What do Levitt and Dubner mean by the term "pimpact"?(choose right answer) a:an analysis of the data…

A: The answer is - d. The analysis of data gathered from street prostitutes indicates that the payment…

Q: usiness Ethics is the application of ethical and moral principles or in a business environment. It…

A: (1) Unethical practices that are adopted by business organizations in Oman are as follows-…