A census is feasible when the population of interest is small.
A) True B) False
Q. 2Explain why it is not necessary to provide a measure of reliability when a census is used
rather than a sample.
What will be an ideal response?
Q. 3A high school guidance counselor analyzed data from a sample of 500 community
colleges throughout the United States. One of his goals was to estimate the annual
tuition costs of community colleges in the United States.
Describe the population and
variable of interest to the guidance counselor.
Q. 4A quality inspector tested 66 copiers in an attempt to estimate the average failure rate of
the copier model. His study indicated that the number of failures decreased from two
years ago, indicating an increase in the reliability of the copiers.
Describe the variable of
interest to the inspector.
Q. 5Parking at a university has become a problem. University administrators are interested
in determining the average time it takes a student to find a parking spot.
An
administrator inconspicuously followed 290 students and recorded how long it took
each of them to find a parking spot. Identify the population, sample, and variable of
interest to the administrators.
Q. 6A 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.
A) the number of online classes a student has taken
B) the response (Yes/No) to the question, Have you taken at least one online class?
C) all community college students in the state of Georgia
D) the 1500 community college students contacted
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