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Sampling Techniques Quiz 3 (25 MCQs)

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1. For quality assurance, every twelfth engine part is selected from and assembly line and tested for durability.
2. What kind of sample technique is the following:Selecting 60 customers who have purchased your product and sending them a survey.
3. Which of the following is not a qualitative variable?
4. Identify the sampling design:Mr. Altenhof asks each family member what their favorite TV show is
5. The principal randomly selects four classes and surveys each student in those classes. What kind of sampling technique is used?
6. Which of these sampling methods introduces researcher bias?
7. A television station is interested in predicting whether voters in its viewing area are in favor of offshore drilling. It asks its viewers to phone in and indicate whether they support or are opposed to offshore drilling. This is an example of
8. Totality of all values (or measurements) of a particular characteristic for a specified group of objects that are of interest to the researcher.
9. Ms. Noelle gets a sample from her class by selecting every third person on her class list. Which type of sampling method is this?
10. How can the reliability of light meter readings be checked?
11. A test is given that has a mean of 70 and a standard deviation of 13. If a student's z-score is 1, the student's score is:
12. Which formula is usually used in getting a sample?
13. Every item or person has the same chance of being selected any other.
14. Generalisation of findings is most likely when using which sampling technique?
15. Every member of a population has an equal chance of being selected in this type of sample.
16. Identify the sampling technique used in the following study:In order to estimate the percentage of defects in a recent manufacturing batch, a quality control manager at Intel selects every 8th chip that comes off the assembly line starting with the 3rd, until she obtains a sample of 140 chips.
17. An NBC television news reporter gets a reaction to a breaking news story by polling people as they pass in front of his studio.
18. A student is choosing 10 companies to research out of the top 50 Fortune 500 companies. She does this by assigning a number to each of the 50 companies and using a random number generator to choose these 10. What is this an example of?
19. Members of the population are grouped; one or more groups are selected at random. All members of that group are included in the sample.
20. A psychologist investigating language development takes all the names of deaf babies from the NHS register and gets a computer to randomly generate 40 names. Which sampling technique have they used?
21. GHC conducts a study of student drinking by randomly selecting 20 different classes and interviewing all of the students in each of those classes.
22. The local movie theater wanted to know the average age of its patrons, so they asked every 15th person leaving the theater their age.
23. In a recent political poll, a computer is used to randomly generate telephone numbers for subjects that were called and interviewed.
24. What sampling method are you using if you survey the students in the school whose names are picked out of a hat?
25. This sample consists of an easily accessible subject of the population.
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