Homework Answers
C. it is an example of Voluntary Response Sample. This is because it is completely under the control and will of the customers using the app.
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A smartphone app produces a message requesting customers to click on a link to rate the...
tests to see whether they are using performance-enhancing drugs. Officials select two teams at up to test all the players of the randomly chosen teams. Each testing day can be considered a study...
tests to see whether they are using performance-enhancing drugs. Officials select two teams at up to test all the players of the randomly chosen teams. Each testing day can be considered a study of drug use in baseball. Answer parts a) and b). unan a) What kind of sample is this? O Systematic sample Voluntary response sample Cluster sample Stratified random sample Simple random sample Convenience sample O O O b) Is the choice of sampling design appropriate? A. No....
Quiz: Chapter 1 Post-lest Time Remaining: 00:46:25 Submit Quiz This Question: 1 pt 15 of 22...
Quiz: Chapter 1 Post-lest Time Remaining: 00:46:25 Submit Quiz This Question: 1 pt 15 of 22 (14 complete) ► This Quiz: 22 pts possibl Identify the type of sampling used (random, systematic, convenience, stratified, or cluster sampling) in the situation described below. In a poll conducted by a certain research center, 1114 adults were called after their telephone numbers were randomly generated by a computer, and 22% were able to correctly identify the president. Which type of sampling did the...
(17 points) In a particular county, car registration records for families show ownership of vehicles. There...
(17 points) In a particular county, car registration records for families show ownership of vehicles. There are 2,000 vehicles registered among 1,800 families. (Some families have only one vehicle while others have multiple vehicles. Of these 2,000 vehicles, 1,500 are cars and 500 are light trucks. The following lists are available: The 2,000 families; the 1,800 vehicles; the 1,500 cars; the 500 light trucks. For each question, identify the sampling plan used to select the sample of vehicles. (a) We...
In a large city school district with 20 elementary schools, the school board is considering the...
In a large city school district with 20 elementary schools, the school board is considering the adoption of a new policy that would require elementary students to pass a test in order to be promoted to the next grade. The PTA wants to find out whether parents agree with this plan. Listed below are some ideas proposed for gathering data. Identify the type of sample for each of the ideas listed. ? simple random convenience cluster stratified 1. Ask the parents who come to...
Consider the previous question. Suppose the students has been told to specifically take a random sample...
Consider the previous question. Suppose the students has been told to specifically take a random sample of 250 hardcover books and 250 paperback books. What type of sampling method should the students use? Select one: O a. Simple random sample O b. Stratified sample O c. Cluster sample O d. Systematic sample
In order to gather the opinion of students regarding online assignments, data will be collected from...
In order to gather the opinion of students regarding online assignments, data will be collected from STAT 1000 students who are currently registered in the course. The researcher decides to divide the students into two groups, 1) students who have never taken this course before and 2) students who have taken this course before. Ten students will be randomly selected from each of the two groups. The sample thus selected is a Select one: a. Convenience sample b. Voluntary response...
(8 points) A statistics student at a small liberal arts college who is curious about the...
(8 points) A statistics student at a small liberal arts college who is curious about the relationship between the amount of time students at his college spend on social networking sites and their performance at school decides to conduct a survey. Four research strategies for collecting data are described below. In each, name the sampling method proposed and any bias you might expect. Strategy 1: He obtains a list of the 1500 students at the college. He chooses a random...
Thank you. very much Quiz: Chapter 1 Quiz Sub This Question: 1 pt 4 of 10...
Thank you. very much
Quiz: Chapter 1 Quiz Sub This Question: 1 pt 4 of 10 (2 complete) This Quiz: 10 pts Identify the sampling techniques used, and discuss potential sources of bias (if any). Explain. Lettuce is planted on a 45-acre field. The field is divided into one-acre subplots. A sample is taken from each subplot to estimate the harvest. What type of sampling is used? O A. Stratified sampling is used, since the field is divided into subplots...
Identify each of the following statements as either TRUE or FALSE a) (Click for List) A...
Identify each of the following statements as either TRUE or FALSE a) (Click for List) A response variable is the outcome of the experiment or study. b) (Click for List)One advantage of stratified random sampling is to ensure that each strata gets adequate representation in the sample. c) C or S f an explanatory variable and a response vanable are correlated, then can safely be assumed that the explanatory variable causes the response variable. d) (Click for List) Changes in...
8 ports A statistics st den at ฮ smaliberal arts colege ho s cu ous about...
8 ports A statistics st den at ฮ smaliberal arts colege ho s cu ous about he eationship between he a moun o m e st ents ฮ his co ege spend on social network ng sites and her perform ance a school dec des o conduct a su vey Four research strategies or collecting data are described below. In each, name the sampling method proposed and any bias you might expect. Strategy 1: He obtains a ist of the...
tests to see whether they are using performance-enhancing drugs. Officials select two teams at up to test all the players of the randomly chosen teams. Each testing day can be considered a study of drug use in baseball. Answer parts a) and b). unan a) What kind of sample is this? O Systematic sample Voluntary response sample Cluster sample Stratified random sample Simple random sample Convenience sample O O O b) Is the choice of sampling design appropriate? A. No....
Quiz: Chapter 1 Post-lest Time Remaining: 00:46:25 Submit Quiz This Question: 1 pt 15 of 22 (14 complete) ► This Quiz: 22 pts possibl Identify the type of sampling used (random, systematic, convenience, stratified, or cluster sampling) in the situation described below. In a poll conducted by a certain research center, 1114 adults were called after their telephone numbers were randomly generated by a computer, and 22% were able to correctly identify the president. Which type of sampling did the...
(17 points) In a particular county, car registration records for families show ownership of vehicles. There are 2,000 vehicles registered among 1,800 families. (Some families have only one vehicle while others have multiple vehicles. Of these 2,000 vehicles, 1,500 are cars and 500 are light trucks. The following lists are available: The 2,000 families; the 1,800 vehicles; the 1,500 cars; the 500 light trucks. For each question, identify the sampling plan used to select the sample of vehicles. (a) We...
Consider the previous question. Suppose the students has been told to specifically take a random sample of 250 hardcover books and 250 paperback books. What type of sampling method should the students use? Select one: O a. Simple random sample O b. Stratified sample O c. Cluster sample O d. Systematic sample
In order to gather the opinion of students regarding online assignments, data will be collected from STAT 1000 students who are currently registered in the course. The researcher decides to divide the students into two groups, 1) students who have never taken this course before and 2) students who have taken this course before. Ten students will be randomly selected from each of the two groups. The sample thus selected is a Select one: a. Convenience sample b. Voluntary response...
Thank you. very much
Quiz: Chapter 1 Quiz Sub This Question: 1 pt 4 of 10 (2 complete) This Quiz: 10 pts Identify the sampling techniques used, and discuss potential sources of bias (if any). Explain. Lettuce is planted on a 45-acre field. The field is divided into one-acre subplots. A sample is taken from each subplot to estimate the harvest. What type of sampling is used? O A. Stratified sampling is used, since the field is divided into subplots...
Identify each of the following statements as either TRUE or FALSE a) (Click for List) A response variable is the outcome of the experiment or study. b) (Click for List)One advantage of stratified random sampling is to ensure that each strata gets adequate representation in the sample. c) C or S f an explanatory variable and a response vanable are correlated, then can safely be assumed that the explanatory variable causes the response variable. d) (Click for List) Changes in...
8 ports A statistics st den at ฮ smaliberal arts colege ho s cu ous about he eationship between he a moun o m e st ents ฮ his co ege spend on social network ng sites and her perform ance a school dec des o conduct a su vey Four research strategies or collecting data are described below. In each, name the sampling method proposed and any bias you might expect. Strategy 1: He obtains a ist of the...
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