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A political pollster wants to ensure that their poll on attitudes toward separation of church and state gets responses from all major religious groups. What kind of sampling method should be used?

2. A sample is selected using geographic or other boundaries is a : Simple random sample Systematic random sample Cluster sample Stratified random sampling None of above

A sampling technique used to determine error rates in populations is: а. PPS sampling. b. Variables sampling. C. Cluster sampling. d. Attribute sampling.

An alumni coordinator is interested in studying the performance of CoE EM alumni.She clustered the identified respondent to regions in the Philippines, then randomlyselects five regions, and finally selects three medium-scale to large-scale miningcompanies for every region selected. With this she identified the Mining EngineerAlumni for interview. What sampling method does the coordinator used?

(Ch8) The Central Limit Theorem (CLT) implies that _____. Question 9Select one: the distribution of the sample mean is approximately normal when the sample variance is getting larger the population will be approximately normal if the sample size n is greater than 40 the distribution of the sample mean is approximately normal when the sample size is getting larger repeated samples must be taken to obtain normality for the sample mean distribution

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1. Suppose you want to determine the reading literacy of freshmen college students in NJ. Describe how you could collect a sample under the following methods: a. Stratified random sampling b. Simple random sampling c. Convenience sampling d. Systematic random sampling

Give an example of a kind of sampling error you might see in a poll besides random sampling error

A quality engineer in charge of a coffee filter pack production line was concerned about the weight (in grams) of the filter packs being produced. The quality team sampled three packs every hour, throughout the production day. The table below shows the results: Sample number 1 2 3 4 5 6 7 20.6 20.1 20.6 21.5 21.4 21.1 21.4 Weight (g) 21.1 20.0 21.2 22.2 21.1 22.3 20.9 20.7 20.3 21.3 21.4 19.9 19.9 21.1

Please don't provide answer in image format thank you.

The following are auditor judgments and attributes samplingresults for six populations. Assume large population sizes.1 2 3 4 5 6EPER (in percent) 2 1 1 0 3 8TER (in percent) 6 5 20 3 8 15ARO (in percent) 5 5 10 5 10 10Actual sample size 100 100 20 100 60 60Actual number of exceptions in the sample 2 4 1 0 1 8a. For each population, did the auditor select a smaller sample size than is indicatedby using the attributes sampling tables in Table 15-8 for determining sample size?Evaluate selecting either a larger or smaller size than those determined in the tables.b. Calculate the SER and CUER for each population.c. For which of the six populations should the sample results be consideredunacceptable? What options are available to the auditor?d. Why is analysis of the exceptions necessary even when the populations areconsidered acceptable?e. For the following terms, identify which is an audit decision, a nonstatistical estimatemade by the auditor, a sample result, and a statistical…

As the Country Director of a multi-national company in Ghana, you have decided to conduct a survey to determine the perception of Ghanaians about a new alcoholic beverage you have introduced into the market. Identify, justify your choice, and explain any three (3) sampling techniques that can be employed for such a survey. Discuss how you will use each technique to select sampling elements for the study. Clearly explain how you will collect the data.

Question 1 The distance between the sample mean and the true population is the sampling error, O True False

An econometrics class has 80 students, and the mean student weight is145 lb. A random sample of 4 students is selected from the class, and theiraverage weight is calculated. Will the average weight of the students in thesample equal 145 lb? Why or why not? Use this example to explain whythe sample average, Y, is a random variable ?

Find a recent public opinion poll related to the issue of global economic inequality, identify the date and source, and summarize the results. Additionally, answer the following questions as you further parse the data: What is the sample size and who was in the sample? What was the polling methology used? Based on the sample and polling methodology, why should we be cautious in generalizing the results? How do the views of various subgroups vary with respect to your issue? Finally, as you seek to grow public support for your issue, what opportunities and challenges are illuminated by the polling results?

Please do STEP 5 only. STEPS IN THE SAMPLING PROCESS: Define the population from which the sample is to be drawn. Specify the population frame from which the sample will be taken. Choose the sampling methods on selecting samples. Determine the sample size requirement for the study Select the actual samples. Bases on above steps, assuming that a study on risk management practices is to be conducted among 4,488 entrepreneurs wherein 2,244 are college graduates, 1,346 are high school graduates and the remaining 898 are elementary graduates.Furthermore 1,795 of them are into food business, 1,571 are into merchandising or trading business and the others 1,122 are into services business. REQUIRED: Apply the steps in the Sampling plan in order to select the actual samples and  make your own assumptions: Each step is identified and explained properly.

Problems-2: The following data shows birth weights (oz) from seven consecutive deliveries at the Johns Hopkins Hospital in April 2019. 121 138 32 100 58 64 a) Calculate the sample mean birth weight: =74 b) Calculate the sample median birth weight: =64 c) Calculate the sample standard deviation of these birth weights: =48.06593 d) Suppose this is a representative sample of births in a given year at Johns Hopkins. Suppose, instead of a sample of seven values, we have a sample of 100 birth weights. How should the mean, median, and standard deviation of this sample compare to the same statistics for the sample of seven birth weights?

Please I need the correct answers

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Question One a) The University of the East Europe is interested in the overall performance of its students in the academic year 2020/2021. There were 1460 students registered for this academic year. The University decides to select a sample of 150 students from each of the 5 faculties- Science, Medicine, Law, Social Science and Humanities in proportion to the number of students in each faculty. Identify the population of interest for this scenario. ii. i. Identify the sampling technique used by the researcher. State one advantage and one disadvantage of the sampling technique described in the given scenario. If the medical faculty has 584 students registered, calculate how many medical students would be part of the sample of 150. iii. iv.

Please correct answer and step by step solution

Researchers attempting to generate a random sample from the source population need to avoid what type of bias that could occur if each individual in the source population does not have an equal chance of being selected for the sample population?

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.

A researcher is interested to search students’ willingness in participating in sport. Students are at undergraduate level and form different specialization studying in particular college. The researcher wants to interview students from all specializations in order to find whether there is a link between specialization and participation in sport. He arranges the by undergraduate specialization, next, he selects students randomly within each specialization. What is the name of sampling method?

What sampling technique is used?   In a research class of 40 students, the teacher divides the class into five groups, each with eight members per group. The teacher then asked the class to choose their group members based on interests, compatibility, and rapport. After the selection was made, the teacher realized that the abilities per group were uneven. He then reshuffled some members of the group to achieve equilibrium among the groups. The teacher needs ten students to represent each group. He selected one male and one female from each group based on academic performance, leadership skills, and social skills as qualities that will embody as representatives per group.

Explain in details the importance of collecting a representative sample to answer a question about a population

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Help please The business manager of a large company wants to check the inventory records against the physical inventories by a sample survey. He wants to be almost sure that the maximum sampling error should not be more than 5% above or below the true proportion of the inaccurate records. The proportion of the inaccurate records is estimated at 35% from past experiences. Determine the sample size?

Which of the following is a reason for using independently pooled cross sections? a. To increase the sample size b. To select a sample based on the dependent variable c. To select a sample based on the independent variable d. To obtain data on different cross sectional units

Sixteen smokers whose ages were between 50 and 65 years were randomly selected. Blood samples were taken from them. Their cholesterol levels were determined and are presented below.                                                        181             287             240             256                                                        257             179             209             296                                                        211             231             171             248                                                        189             212             189             187   Compute the following: Sample mean Sample variance Sample standard deviation

PLEASE ANSWER CORRECTLY FULLY MAKE SURE THE ANSWER IS 100% RIGHT  NO MISTAKES PLEASE

10. Student A in our class ECON 2210 tried to estimate the average marks of the midterm held in March, 2022. Based on a random sample of 30 students' marks and with a 95% confidence level, the student arrived at an interval estimate for the average marks of between 50 and 80. (a) After receiving this result, student B in the same class claimed that there was a 95% chance that the true average marks of the midterm were between 50 and 80. How would you respond to this statement? Is it correct? Why or why not? (b) Student C in the same class did not agree with student B and he claimed that there was a 95% chance that the true average marks of the next midterm were between 50 and 80. How would you respond to this statement? Is it correct? Why or why not?