question in my homework asks me to: Identify the type of sampling used (random, systematic, convenience, stratified, or cluster sampling) in the situation described below.
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A question in my homework asks me to: Identify the type of sampling used (random, systematic, convenience, stratified, or cluster sampling) in the situation described below.
A woman experienced a tax audit. The tax department claimed that the woman was audited because her name is among the first 250 names on the taxpayer list. Which type of sampling did the tax department use?
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- Consider the following four studies below and then match them accordingly to their sampling type. Study 1: Henrietta manages a movie theater that recently completed a remodel. She would like to learn what her customers think about it. So she decides to give every 20th person that enters the theater a survey that asks them their opinion of the remodel. Study 2: Suppose a research team wants to determine the average GPA of college students in the U.S. They choose to have their sample represent the target population in terms of major and know from a different study that 12% majer in English, 28% major in science, 15% major in computer science, 21% major in engineering, 5% major in mathematics, 10% major in the arts, and the remaining 9% have a different major. In their sampling procedure they are careful to make sure that their sample has these exact percentages, in terms of major, by performing a simple random sample within each of these subgroups. Study 3: A raffle takes place where…A study is conducted to assess the attitude of physicians towards drug screening in the workplace. To collect the information, physicians are invited to respond to an email survey that is distributed on a network accessible to all university affiliated physicians in the city. Which of the following best describes this type of sampling technique? A. Convenience B. Population C. Random D. Referral E. StratifiedJohn 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 political scientist is interested in the effect of government type on economic development, She wants to use a sample of 30 countries evenly represented among the Americas, Europe, Asia, and Africa to conduct her analysis. What type of study should she use to ensure that countries are selected from each region of the world? a. Observational - simple random sampling b. Observational - cluster sampling c. Observational - stratified sampling d. ExperimentalIdentify which type of sampling is used: random, systematic, convenience, stratified, or cluster. A television station asks its viewers to call in their opinion regarding the variety of sports programming. Which type of sampling is used? O A. Stratified B. Random OC. Convenience O D. Cluster O E. SystematicOnline Medical Info USA Today posted this question on its website: “How often do you seek medical information online?” Of 1072 Internet users who chose to respond, 38% of them responded with “frequently.” What term is used to describe this type of survey in which the people surveyed consist of those who decided to respond? What is wrong with this type of sampling method?
- 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.Which of the following are sources of sampling error and which are sources of nonsampling error? The subject cannot be contacted in five calls. The telephone directory is used as a sampling frame. Data are gathered by asking people to go to a website and answer questions online. A typing error is made in recording the data. The subject lies about past illegal drug use. Interviewers choose people on the street to interview.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
- Problem: Which single sampling plan should be used for a lot size of 5000, an LTPD of 5% with a consumer's risk (¤) of 0.10, and process average as 0.6% defective? erFor the given situation, decide what sampling method you would use. Provide an explanation of why you selected a particular method of sampling. The major state university in Region A is attempting to lobby the state legislator for a bill that would allow the university to charge a higher tuition rate than the other universities in the country. To provide a justification, the university plans to conduct a mail survey of its alumni to collect information concerning their current employment status. The university grants a wide variety of different degrees and wants to make sure that information is obtained about graduates from each of the degree types. A 5% sample of alumni is considered sufficient.Determine the sampling method used in the following situation: A political party wants to know the reaction of voters to a debate between the candidates. The day after the debate, the party's polling staff used a statistical software to generate 1,300 phone numbers. The staff called the numbers, and if a registered voter answers the phone, or is available to come to the phone, that registered voter is asked whom they intend to vote for, and whether the debate changed their opinion of the candidates. Simple Random Sampling Systematic Sampling SUBMIT QUESTION SAVE PROGRESS All folders are up to date 70 Connected to: Microsoft Exchange SUBMIT ASSI
