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IA3-2 Ch12 Sampling and Bias

Last updated almost 5 years ago

5 questions

1

Question 1

1.

State police set up a roadblock to estimate the percentage of cars with up-to-date registration, insurance, and safety inspection stickers. They usually find problems with about 10% of cars they stop.
What is the population?

1

1

1

1

Question 2

2.

State police set up a roadblock to estimate the percentage of cars with up-to-date registration, insurance, and safety inspection stickers. They usually find problems with about 10% of cars they stop.
What is the population parameter of interest?

Question 3

3.

State police set up a roadblock to estimate the percentage of cars with up-to-date registration, insurance, and safety inspection stickers. They usually find problems with about 10% of cars they stop.
What is the sampling frame?

Question 4

4.

State police set up a roadblock to estimate the percentage of cars with up-to-date registration, insurance, and safety inspection stickers. They usually find problems with about 10% of cars they stop.
What is the sample?

Question 5

5.

State police set up a roadblock to estimate the percentage of cars with up-to-date registration, insurance, and safety inspection stickers. They usually find problems with about 10% of cars they stop.
What sampling method could you employ to avoid bias?