Question
Question 1 (1 point) Answer the question True or False. Measurement is the process of assigning numbers to variables of individual population units. Question 1
Question 1 (1 point)
Answer the question True or False. Measurement is the process of assigning numbers to variables of individual population units.
Question 1 options:
True | |
False |
Question 2 (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. The university is interested in using the information from the sample of 250 students collected to learn information about the entire student parking population. Would this be an application of descriptive or inferential statistics?
Question 2 options:
Descriptive statistics | |
Inferential statistics |
Question 3 (1 point)
Answer the question True or False. A variable is a characteristic or property of a population.
Question 3 options:
True | |
False |
Question 4 (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 variable of interest to the university administration.
Question 4 options:
the entire set of students that park at the university | |
a single student that parks at the university | |
the parking time, defined to be the amount of time the student spent finding a parking spot | |
the 250 students that data was collected from |
Question 5 (1 point)
Solve the problem. The amount of television viewed by today's youth is of primary concern to Parents Against Watching Television (PAWT). 50 parents of elementary school-aged children were asked to estimate the number of hours per week that their child watches television. Identify how the data were collected in this study.
Question 5 options:
observationally | |
from a designed experiment | |
from a survey | |
from a published source |
Question 6 (1 point)
Solve the problem. What number is missing from the table?
Year in College | Frequency | Relative Frequency |
Freshman | 600 | .30 |
Sophomore | 560 | .28 |
Junior | 440 | .22 |
Senior | .20 |
Question 6 options:
520 | |
440 | |
400 | |
480 |
Question 7 (1 point)
Solve the problem. The average age of the students in a statistics class is 21 years. Does this statement describe descriptive or inferential statistics?
Question 7 options:
Descriptive statistics | |
Inferential statistics |
Question 8 (1 point)
Answer the question True or False. The process of using information from a sample to make generalizations about the larger population is called statistical inference.
Question 8 options:
True | |
False |
Question 9 (1 point)
Answer the question True or False. A frequency table displays the proportion of observations falling into each class.
Question 9 options:
True | |
False |
Question 10 (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 population of interest in this study.
Question 10 options:
the number of online classes a student has taken | |
the 1500 community college students contacted | |
the response (Yes/No) to the question, "Have you taken at least one online class?" | |
all community college students in the state of Georgia |
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