1. The 50 states in the United States were numbered alphabetically and a researcher decided to randomly select a number and then survey every sixth state on unemployment rates. What type of sampling technique is the researcher employing?
2. A pollster wants to determine which local news channel is watched most frequently in New York City. Two city blocks in Manhattan are used as a sample. What type of sampling technique is being used?
3. What are the four basic sampling techniques?
4. What are two advantages of using simulation techniques instead of actual situations?
5. The following numbers were randomly generated. Starting with the number 97, select every other number down the columns then continue at the top of the next column, until seven numbers have been chosen. If the odd numbers represent tails, and the even numbers represent heads, how many times does this simulated coin land on tails?
68 96 37 69 97 19 50 29 66
74 8 58 5 13 30 69 65 50
36 47 22 15 19 44 9 11 16
6. A six-sided die is used to simulate the favorite ice cream flavors for a simulated series of customers.
Roll Flavor
1 Vanilla
2 Vanilla
3 Chocolate
4 Chocolate
5 Strawberry
6 Mint Chocolate Chip
Given that the following five numbers were rolled, how many customers had chocolate as their favorite flavor?
2 6 3 4 5
7. A researcher is using a random number table to pick between two groups labeled X and Y. Each group is to be chosen with the same probability (0.50). The researcher assigns the odd digits {1, 3, 5, 7, 9} to X and the even digits {2, 4, 6, 8, 0} to Y. The researcher uses this section of a random number table
7 0 2 5 3 6 1 8 7 1
What is the first choice?
8. A flip of a fair coin is used to simulate the gender of a series of simulated students.
Flip Gender
H Female
T Male
Given the following four flips, how many male students were there?
T H H H
9. A researcher is using a random number table to pick between two groups labeled X and Y. Each group is to be chosen with the same probability (0.50). The researcher assigns the odd digits {1, 3, 5, 7, 9} to X and the even digits {2, 4, 6, 8, 0} to Y. The researcher uses this section of a random number table
6 9 1 4 9 0 8 9 4 2
What are the first and second choices?
10. If all possible samples of a specific size have the same chance of being selected, what type of sampling technique is being used?