Name: __________________________ Date:



Name: __________________________ Date: _____________

|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? |

|11. |A statistics teacher taught Introductory Statistics to a large lecture class of 200 students. She wanted to calculate the |

| |average of the first examination by selecting every eight student's test score and finding the average of these scores. What |

| |type of sampling technique is being employed? |

|12. |Sampling differs from simulation in that |

|13. |A flip of a fair coin is used to simulate the sizes of a series of simulated shirts. |

| |Flip |

| |Size |

| | |

| |H |

| |Medium |

| | |

| |T |

| |Extra-Large |

| | |

| |Given the following six flips, how many extra-large shirts were there? |

| |H T T T H T |

|14. |The survey question "Why do you think that people break laws?" is a poor survey question because it is |

|15. |What term is given to a sample chosen at random from a population? |

|16. |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 eight numbers were rolled, how many customers had the same favorite flavor as the person just in front |

| |of him? |

| |2 6 3 3 6 1 2 1 |

|17. |The survey question "Since everybody likes baseball, you support the construction of the new ball field, don't you?" is a poor |

| |survey question because it is |

|18. |A quality control engineer is checking parts coming off an assembly line to see if they meet customer specifications. What type|

| |of sampling is being employed? |

|19. |A six-sided die is rolled to simulate a nine-hole round of golf. |

| |Roll |

| |Score |

| | |

| |1 |

| |Hole-in-one |

| | |

| |2 |

| |Eagle |

| | |

| |3 |

| |Birdie |

| | |

| |4 |

| |Par |

| | |

| |5 |

| |Bogey |

| | |

| |6 |

| |Double-Bogey |

| | |

| |Given that the following nine numbers were rolled, on how many holes did the golfer make par or better (hole in one, eagle, |

| |birdie, or par): |

| |3, 1, 1, 4, 6, 5, 2, 3, 6 |

|20. |A researcher is using a random number table to pick between two groups labeled X and Y. X is to be chosen with probability 5/7 |

| |and Y with probability 2/7. The researcher assigns the digits {1, 2, 3, 4, 5} to X and the digits {6, 7} to Y. The researcher |

| |uses this section of a random number table |

| |6 9 5 6 3 6 2 3 6 1 |

| |What are the first and second choices? |

Answer Key

|1. |systematic |

|2. |cluster |

|3. |random, systematic, stratified, and cluster sampling |

|4. |It can be either less costly, less time consuming, or, in some situations, less dangerous to run a simulation rather than study |

| |actual situations. |

|5. |The simulated coin will land on tails three times. |

|6. |2 |

|7. |X |

|8. |1 |

|9. |The first choice is Y and the second choice is X |

|10. |random sampling |

|11. |systematic sampling |

|12. |Sampling uses data gathered from real-life observation while simulation uses data from computer generated situations |

|13. |4 |

|14. |Too open-ended of a question |

|15. |unbiased sample |

|16. |3 |

|17. |A biased question |

|18. |sequence sampling |

|19. |6 |

|20. |The first choice is Y and the second choice is X |

................
................

In order to avoid copyright disputes, this page is only a partial summary.

Google Online Preview   Download