Question

1. A study was created to test which brand of tire lasts longest when driving on rough surfaces. After 5000 miles in a lab machine, the tread was measured. What type of study would this be?

	A.	Observational
	B.	Experimental

2. You want to determine which degree leads to a higher starting salary, creative writing or art history. You track students with these majors for the next 5 years. What type of study would this be?

	A.	Observational
	B.	Experimental

3. Which is an example of a simple random sample?

		Multiple draws from a deck of cards without replacement
		Choosing names from a hat
		Surveying your neighbors
		Choosing every three names from an alphabetized list

4. _________ are used to infer about __________

	A.	Population parameters; sample statistics
	B.	Sample statistics; population parameters
	C.	Population statistics; sample parameters
	D.	Sample parameters; population statistics

5. Choose all that apply. Population parameters

		Are rarely known
		Are estimated from sample statistics
		Are calculated from samples
		Can be found by sampling a large portion of the population

6. We defined our population as this class, and then collected heights of all the people in this class, and took an average. This would be an example of a

	A.	Parameter
	B.	Statistic

Answer 1