1.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?
2.Sampling differs from simulation in that
3.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
4.The survey question "Why do you think that people break laws?" is a poor survey question because it is
5.What term is given to a sample chosen at random from a population?
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 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
7.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
8.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?
9.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
10.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?