The National Agricultural Statistics Service (NASS) conducts studies ofthe number of dcres devoted to farms in each county of the UnitedStates. Suppose that we divide the United States into the four censusregions. We then randomly choose two from these, and from each of thechosen region, we randomly choose the counties, which will be a part ofour study.The method that is best observed in this example is a cluster sampling.TrueO False

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

Answered: The National Agricultural Statistics…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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John F. Kennedy. In one of his books, Ted Sorenson, Special Counsel to President John F. Kennedy, presents an intimate biography of the extraordinary man. According to Sorenson, Kennedy “read every fiftieth letter of the thirty thousand coming weekly to the White House.” What type of sampling design was Kennedy using in this case? Explain your answer. [SOURCE: FromKennedy: The Classical Biography by Ted Sorenson. Published by Harper Perennial, © 2009.]
A coach is interested in how many slam dunks the average college freshman at his university can do. Ten volunteers from the senior class step forward. After observing their performance, the coach concluded that college seniors can do an average of 10 slam dunks in a row without missing. what is the sample? what is the population?
3)
Question 6 I am stuck between cluster and stratified for the answer. Need help with this problem. Identify which of these types of sampling is used: random, stratified, systematic, cluster, convenience. A market researcher selects 500 drivers under 30 years of age and 500 drivers over 30 years of age. Question 6 options: Cluster Stratified Convenience Systematic Simple Random
Suppose you recruit the next 100 people who visit the DCC cafeteria to participate in a survey. One of the questions you ask is whether the student eats on campus (i.e., in the cafeteria) regularly, and you want to use the sample proportion to estimate the value of the (population) proportion of all DCC students who eat on campus regularly. Do you think this sampling method is likely to be biased? If so, in which direction? This sampling method is not likely to be biased and will produce a representative sample of DCC students. This sampling method is biased and is likely to yield an overestimate for the population proportion. This sampling method is biased and is likely to yield an underestimate for the population proportion.
Telephone surveys may use a telephone directory to identify individuals for study. Speculate on the type of household that would be uncovered by using this sampling frame
To conduct a door-to-door survey about crime victimization, a city official randomly selects 5 city blocks and surveys all the residents of these 5 city blocks. What type of sample is this?A. Simple Random SampleB. Systematic Random SampleC. Cluster SampleD. Multistage SampleE. Stratified Random Sample
When the Bureau of Labor Statistics conducts a survey, it begins by partitioning the United States adult population into 2,0072,007 groups called primary sampling units. Assume that these primary sampling units all contain the same number of adults. If you randomly select one adult from each primary sampling unit, is the result a simple random sample. Why or why not?
What is the sampling method described? The population is divided into groups where similar cases are grouped together. Then second sampling method is employed to sample the cases within each group. a. A simple random sampling b. Stratified sampling c. Cluster sampling d. Multi-stage sampling
Question 4 Coach Smith wants to know whether students would pay for the privilege of parking their cars in the lot closest to the school. He surveyed students getting on the buses while he monitored bus loading each afternoon. What type of sampling technique is this? Your answer: O Simple random sampling O Stratified random sampling O Systematic sampling Cluster sampling Convenience sampling O o o O O
1. Compare and contrast each of these sampling methods. Give examples for each one of them. a. cluster sampling b. stratified sampling c. snowball sampling
Suppose you are hired to design how to implement a survey to try to predict who will win the race for mayor in the city of Modesto. While someone else will be writing the survey questions, you are in charge of making sure that the sampling method is not biased (otherwise the results are invalid). You decide to use stratified sampling to get a sample that represents the population. You are told that you need to subdivide the population into four or more subgroups. 1. Describe how you will subdivide the population into four or more subgroups. Explain. 2. Explain how you will be choosing the people that will be part of your sample.

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