Question 11 (1 point)

Solve the problem. A survey of high school teenagers reported that 89% of those sampled are interested in pursuing a college education. Does this statement describe descriptive or inferential statistics?

Question 11 options:

	Inferential statistics
	Descriptive statistics

Question 12 (1 point)

Solve the problem. An usher records the number of unoccupied seats in a movie theater during each viewing of a film. Identify the type of data collected.

Question 12 options:

	quantitative
	qualitative

Question 13 (1 point)

Solve the problem. As part of an economics class project, students were asked to randomly select 500 New York Stock Exchange (NYSE) stocks from the Wall Street Journal. As part of the project, students were asked to summarize the current prices (also referred to as the closing price of the stock for a particular trading date) of the collected stocks using graphical and numerical techniques. Identify the experimental unit of interest for this study.

Question 13 options:

	the entire set of stocks that are traded on the NYSE
	the current price (or closing price) of a NYSE stock
	a single stock traded on the NYSE
	the 500 NYSE stocks that current prices were collected from

Question 14 (1 point)

Solve the problem. Parking at a large university has become a very big problem. University administrators are interested in determining the average parking time (e.g. the time it takes a student to find a parking spot) of its students. An administrator inconspicuously followed 250 students and carefully recorded their parking times. Identify the data collection method used by the administration in this study.

Question 14 options:

	data from a designed experiment
	data collected observationally
	data from a published source

Question 15 (1 point)

Answer the question True or False. In an observational study, the researcher exerts strict control over the units in the study.

Question 15 options:

	True
	False

Question 16 (1 point)

Solve the problem. In an eye color study, 25 out of 50 people in the sample had brown eyes. In this situation, what does the number 50% represent?

Question 16 options:

	a class frequency
	a class
	a class relative frequency
	a class percentage

Question 17 (1 point)

Solve the problem. Which of the following is not an element of descriptive statistical problems?

Question 17 options:

	information revealed in a data set is summarized
	data are displayed visually in graphs
	predictions are made about a larger set of data
	patterns in a data set are identified

Question 18 (1 point)

Solve the problem. A study in the state of Georgia was conducted to determine the percentage of all community college students who have taken at least one online class. 1500 community college students were contacted and asked if they had taken at least one online class during their time at their community college. These responses were then used to estimate the percentage of all community college students who have taken at least one online class. Identify the variable of interest in this study.

Question 18 options:

	the number of online classes a student has taken
	all community college students in the state of Georgia
	the 1500 community college students contacted
	the response (Yes/No) to the question, "Have you taken at least one online class?"

Question 19 (1 point)

Answer the question True or False. A measure of reliability is an important element of a descriptive statistical problem.

Question 19 options:

	True
	False

Question 20 (1 point)

Solve the problem. Which type of problem has occurred when inaccuracies exist in the values of the data recorded?

Question 20 options:

	nonresponse bias
	selection bias
	measurement error