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Sampling Techniques Quiz 3 (30 MCQs)

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1. How can the reliability of light meter readings be checked?
2. 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:
3. Which formula is usually used in getting a sample?
4. Every item or person has the same chance of being selected any other.
5. Generalisation of findings is most likely when using which sampling technique?
6. Every member of a population has an equal chance of being selected in this type of sample.
7. 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.
8. An NBC television news reporter gets a reaction to a breaking news story by polling people as they pass in front of his studio.
9. 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?
10. Members of the population are grouped; one or more groups are selected at random. All members of that group are included in the sample.
11. 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?
12. GHC conducts a study of student drinking by randomly selecting 20 different classes and interviewing all of the students in each of those classes.
13. The local movie theater wanted to know the average age of its patrons, so they asked every 15th person leaving the theater their age.
14. In a recent political poll, a computer is used to randomly generate telephone numbers for subjects that were called and interviewed.
15. What sampling method are you using if you survey the students in the school whose names are picked out of a hat?
16. This sample consists of an easily accessible subject of the population.
17. Entire collection or set of individuals or objects whose properties are analyzed
18. To find out what the preferred ice cream flavor is, waiting outside an ice cream parlor and asking everyone leaving the store to name his or her favorite flavor until you get 25 responses is an example of .....
19. The school wants feedback on the clubs that were offered this year and asked 10 students from each grade. What is this an example of?
20. What kind of sample technique is the following:Selecting every 8th person in line for a water slide.
21. A teacher samples her class by picking 10 numbers from her hat and each number is assigned to a student. This is ..... sampling.
22. Darrien surveys 60 of the actors theater class. He concludes that 8 out of 15 actors have previous acting experience. What is the sample size?
23. An economist is studying the effect of education on salary and conducts a survey of 150 randomly selected workers from each of these categories:less than a high-school diploma, high-school diploma, more than a high-school diploma.
24. This area of statistics is the interpretation of data values & drawing conclusions about sample
25. Choose the correct answer about Opportunity Sampling?
26. You wish to examine the effects of community quarantine on your fellowstudents. You decided to borrow a list from the guidance office and selectevery 10th student on it. What sampling technique are you using?
27. Mrs. Trahan's class has several more boys than girls. She samples her class by randomly selecting 5 girls and 7 boys. This type of sampling is called?
28. Identify the sampling technique used in the following study:In an effort to determine customer satisfaction, United Airlines randomly selects 50 flights during a certain week and surveys all passengers on the flights.
29. Mr Adam wanted to know student's feedback about his teaching. He places all student's names in a container and picks out 20 to survey.
30. Identify the sampling technique used in the following study:A radio station asks its listeners to call in their opinion regarding the use of American forces in peacekeeping missions.
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