4. Which sampling technique you would use for each of the following experiments. Explain your reasoning....

4. Which sampling technique you would use for each of the following experiments. Explain your reasoning.
a. A scientist is interested in the amount of lead in drinking water of a small town.

b. A botanist is interested in the height of pine trees in a large forest.

c. A sociologist wants to estimate the number of people in Minnesota without health insurance.

d. A student wants to estimate the speed of vehicles passing by a mile post in a rural road for an assignment due next day.

e. A teacher is interested in NWEA math scores of Grade 10 students in Minnesota\

Expert Solution

a.Simple Random Sampling : As the samples of drinking water should be collected from different houses and the houses to be a part of the survey should be selected at random, Simple Random Sampling would be the preferable sampling approach.

b. Simple Random Sampling or Stratified sampling. : Simple Random sampling can be used for the same reason as explained above. If we are planning to use Stratifies Random Sampling, we may take stratas of pine trees, from different parts of the large forest under study. This selection is proposed on the assumption that the height of trees in a given region may depend on the type of the terrain in the region.

c. Here, we are not to do a sampling approach, but a survey/census on the whole population of Minnesota. Only with such an approach, we can estimate the number of people.

d. Cluster sampling : In cluster sampling, every member of the population is assigned to only one group. This group can be intervals of times at which the student observes the speed of the vehicle. Each such group is called a cluster. A sample of clusters can be selected using a probability method may be SRS). Only individuals within selected sampled clusters can then be surveyed.

e.Multistage sampling. : In multistage sampling, we select a sample by using combinations of different sampling approaches. Here, we may select the schools to be selected using Simple Random Sampling(Stage1) and then select students to be selected from each school by using Stratified Random Sampling(Stage2).(Or vice versa)

orchestra answered 2 years ago

Which technique would you use to determine the following? You can only use each technique once....

Which technique would you use to determine the following? You can only use each technique once. Not all techniques will be used. Explain your answer. techniques available: - SDS-PAGE and Western blot - TLC - freeze-fracture - lactoperoxidase labeling - FRAP/photobleaching - photoactivation - hydropathy plot 1. You want to determine if a membrane has proteins in it or not. 2. You want to determine if a cell membrane has the Na+/K+ transporter. 3. You want to determine the types...

QUESTION 4 State whether each of the following are TRUE or FALSE, and explain your reasoning...

QUESTION 4 State whether each of the following are TRUE or FALSE, and explain your reasoning for the answer: The binomial distribution is defined by its mean and standard deviation. As the sample size increases, the standard error of the mean decreases. If the population distribution is unknown, in most cases the sampling distribution of the mean can be approximated by the normal distribution if the samples contain at least 10 observations. (b) Suppose the following trend line and seasonal...

Analyze the following product claims and decide which would be legal and explain your reasoning. If...

Analyze the following product claims and decide which would be legal and explain your reasoning. If you feel the claim is not supportable, explain how would to change it? Nobody makes a beer colder than Coors Light. Taking adult education classes at Bridgestone University, one night a week can change your life. The new Hyundai Genesis offers the luxury and performance of a BMW 5 series for about half the sticker price. You can't survive in this climate without a...

what sampling technique would u use to select the sample study

3. Which reactant in each of the following pairs is a stronger nucleophile? Explain your reasoning....

3. Which reactant in each of the following pairs is a stronger nucleophile? Explain your reasoning. (3) a. NaOH or H2O b. H2O or CH3COO- c. I- or Cl-

State which sampling design should be used in the following situations, and justify your reasoning: i....

State which sampling design should be used in the following situations, and justify your reasoning: i. You need to collect statistics on types of software applications used by employees of a company. Separate lists of employees are available classified by job categories. ii. Patients arriving at an emergency room facility are to be sampled to study their demographics, type of injury, etc. It is decided to sample 10% of the patients. iii. An engineering school plans to conduct a mail...

4. Which of the following quasi-experiments would not be used to evaluate the impact of a...

4. Which of the following quasi-experiments would not be used to evaluate the impact of a program change in the CJ system: a. unmatched group design b. interrupted time series c. non interrupted time series d. both a and c

Which markdown policy would be best for sporting goods? Explain your reasoning. Would your answer be...

Which markdown policy would be best for sporting goods? Explain your reasoning. Would your answer be the same for a specialty apparel store?

Please prove this and explain each step. Thank you. Use logical reasoning to solve the following...

Please prove this and explain each step. Thank you. Use logical reasoning to solve the following puzzle: Five friends disagree on whether to play video games or basketball. Either Alice or Bob, or both, want to play video games. Cindy and Don disagree on what they want to play. If Ellen plays video games, then so does Cindy. Alice and Don will play the same game. If Bob plays video games, then so do Alice and Ellen. Who is playing...

Indicate whether you agree or disagree with the following statements and explain your reasoning. (each 2.5...

Indicate whether you agree or disagree with the following statements and explain your reasoning. (each 2.5 marks, total: 10 marks) a) An auditor is responsible for the preparation and fair presentation of the financial statements in accordance with International Financial Reporting Standards, and for such internal control as is necessary to enable the preparation of financial statements that are free from material misstatement, whether due to fraud or error. (2.5 marks) b) An assurance engagement involves evaluation or measurement of...

Question