1st Version

1. Question: Sharon wants to estimate the percentage of parents who use cloth diapers. She asks a randomly selected group of 75 parents whether or not they use cloth diapers. What is the population?
2. Question: Matthew wants to estimate the mean height of students standing his college. He records the heights of 100 randomly selected students attending the college. What is the population?
3. Question: Anna wants to estimate the mean number of siblings for each student in her school. She records the number of siblings for each of 75 randomly selected students in the school. What is the statistic?
4. Question: A statistic is a numerical characteristic of the sample. In the case, the statistic is the mean number of siblings for the randomly selected students. Which of the following represents the population in the scenario below?
5. Question: A 2016 pew research poll estimated the proportion of people supporting each presidential candidate in the fall election. They based their estimate on telephone interviews of 2010 adults living in all 50 U.S States. They asked each participant which presidential and vice presidential candidate they support, and used that data to calculate the proportions. What is the statistics in the experiment?
6. Question: Raymond wants to estimate the percentage of parents who used cloth diapers. He asks a randomly selected group of 200 parents whether or not they use cloth diapers. What is the parameter?
7. Question: Timothy wants to estimate the percentage of homeowners that own at least one dog. He surveys 100 randomly selected hotel women’s to determine whether or not they own dogs.  What is the parameter?
8. Question: Nick wants to estimate the percentage of homeowners that own at least one dog. He surveys 150 randomly selected individuals to determine whether or not they own dogs. What is the sample?
9. Question: You want to find the average test score of the students in every math class in 11^th grade. There are 15 math classes geared. You survey the scores of 7 math classes, and you calculate that average test score is 83% which of the following represent the sample and the parameter in this scenario?
10. Question: There are 6000 people attended a political debate at a convention centre.  There are three candidates who are participating in the debate. Mr. Smith, Mr., Jones. You want to find out which candidate is most popular amongst the people attending. You ask 500 peoples as they walk into the convention centre. Which represents the population in this scenario?
11. Question: What term refers to all individuals, objects, or measurements whose properties are being studied?
12. Question: Is the statement true or false.? Data are observations of possible outcomes.
13. Question: Joseph wants to estimate the mean number of siblings for each student in his school. He records the number of siblings for each of 200 randomly selected students in the school. What is the sample?
14. Question: A sample is all individuals, objects, or measurements whose properties are being studied.
15. Question: Angela wants to estimate the mean number of siblings for each student in her school. She records the number of siblings for each of 200 randomly selected students in the school. What is the data?

2nd Version

1. Q: Assume that 80 houses are present in the form of a grid consisting of 10 columns and 8 rows. If a loud speaker is placed just before the first row, which sampling method works the best to select a sample of houses if we want to get an estimate of the average loudness (measured in decibels) near all the 80 houses?
2. Q: Angela is studying the mean blood pressure of all students attending her college. She collects data from the 38 students in her statistics class. Which type of sampling is used?
3. Q: A town planner is interested in getting some demographic data about the households in the city. The city has four wards with the following numbers of households: ward A has 2,107, ward B has 903, ward C has 1,505, and ward D has 1,499. The budget for the project allows the planner to survey 100 households. She plans to use a stratified sampling method. What number of households should be chosen from ward B? Enter a whole number.
4. Q: Donald is studying the eating habits of all students attending his school. He samples the population by dividing the students into groups by grade level and randomly selecting a proportionate number of students from each group. He then collects data from the sample. Which type of sampling is used?
5. Q: An executive for a large national restaurant chain with multiple locations in each of 513 counties wants to personally sample the cleanliness of the chain's restaurants throughout the country by visiting restaurants. The executive wants a good-quality sample but wants to minimize travel time and expenses. Which of the following sampling methods would be most appropriate?
6. Q: When considering different sampling methods, stratified sampling includes the steps: _______.
7. Q: When is using a simple random sample appropriate?
8. Q: Ruby is studying the mean waist size of all students attending her college. She collects data from the 25 students in her statistics class. Which type of sampling is used?
9. Q: A school district's superintendent wants to administer a test of life skills to a sample of students. The superintendent has ample time and resources to conduct the study, as well as access to detailed information about all students' addresses, courses, grades, and attendance. Which of the following would be the worst sampling method for the superintendent to use?
10. Q: In reference to different sampling methods, cluster sampling includes the steps: use simple random sampling to select a set of groups; every individual in the chosen groups is included in the sample.
11. Q: A television station plans to send a crew to a polling center on an election day. Because they do not have time to interview each individual voter, they decide to count voters leaving the polling location and ask every 20th voter for an interview. What type of sampling is this?
12. Q: William is studying the hair colors of all students attending his college. He collects data from the 25 students in his statistics class. Which type of sampling is used?
13. Q: A manufacturer has three tool centers that each make about 1000 tools every day. In order to implement better quality-control procedures, the manager wants to start sampling the tools made each day to be able to identify issues as quickly as possible. Which sampling method would be most appropriate?
14. Q: To study the eating habits of all athletes in his school, Christopher obtains a list of the athletes and collects data from every 10th person on the list. Which type of sampling is used?
15. Q: A grocer receives cartons of 12 eggs in boxes of 100 cartons. In a particular month, the grocer receives 4 shipments of eggs with 20 boxes in each shipment. The grocer wants to estimate the proportion of cartons he receives this month that include at least one broken egg. Which of the following sampling methods would be most appropriate?
16. Q: To study the mean head size of all athletes in his school, Kenneth obtains a list of the athletes and collects data from every 6th person on the list. Which type of sampling is used?
17. Q: A professor is interested in the average length of books in her library. She has divided her books into a few different categories: 235 books on mathematics, 290 books on sports, and 166 books on interior design. Rather than examining all the books, she plans to use a stratified sample of 50 books. How many of the sports books should she choose? Enter a whole number.
18. Q: Tina is studying the shoe sizes of all students attending her university. She samples the student population by selecting every 18th student from an alphabetical list of the students. Which type of sampling is used?
19. Q: The management of a large airline wants to estimate the average time after takeoff taken before the crew begins serving snacks and beverages on their flights. Assuming that management has easy access to all of the information that would be required to select flights by each proposed method, which of the following would be reasonable methods of stratified sampling? Select all that apply.
20. Q: When considering different sampling methods, systematic sampling includes the steps: _______.
21. Q: A television station wants to report on a local election. The station has three crews that can be used during the day for collecting data. What sampling method would be appropriate?
22. Q: In reference to different sampling methods, systematic sampling includes the steps: list the members of the population; use simple random sampling to select a starting point in the population; let k = (number of individuals in the population)/(number of individuals needed in the sample); choose every kth individual in the list starting with the one that was randomly selected.
23. Q: A town planner is interested in getting some demographic data about the households in the city. The city has ten wards that vary in size. Which sampling method is most appropriate?
24. Q: When considering different sampling methods, cluster sampling includes the steps: _______.
25. Q: A quality manager at a manufacturing plant needs to get a sample of widgets for monitoring the manufacturing processes. He plans to choose one out of every N widgets produced. The plant makes about 5100 widgets per day, and the quality team has enough time to examine about 60 widgets each day. What value should the manager use for N? Enter a whole number.5100/60 = 85
26. Q: Cluster sampling includes the steps: divide the population into groups; use simple random sampling to identify a proportionate number of individuals from each group.
27. Q: A quality-assurance worker wants to systematically sample 120 glass jars each day from a conveyor belt in a factory that puts out 3,600 jars each day. If the worker will select every kth jar, what is the best value of k for the worker to use? Enter a whole number.3600/120 = 30
28. Q: In order to study the mean pulse rate of people in his town, Jerry samples the population by dividing the residents by regions and randomly selecting 12 of the regions. He collects data from all residents in the selected regions. Which type of sampling is used?