COHP 350 Final Questions And Answers With Verified Solutions
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Course
COHP 350
Institution
COHP 350
COHP 350 Final Questions And Answers With Verified Solutions
A misrepresentation of an association between a sample and its indertial target populations. Typically due to using too small of a sample size. The larger the sample size, the higher potential for an accurate representation of the popula...
COHP 350 Final Questions And Answers With
Verified Solutions
A misrepresentation of an association between a sample and its indertial target populations. Typically due to using
too small of a sample size. The larger the sample size, the higher potential for an accurate representation of the
population. ANS Sample Bias
Choosing a random sample by dividing the population into groups, and then selecting a subset of groups ANS
Cluster Sampling
A quick and convenient way to select a random sample by giving each member of the population a number and then
using a method of unknowingly choosing a number for use in the sample. ANS Simple random sampling
A non-random sample selection method, error-prone for predicitve calculations, but sometimes unnecessary. ANS
Convenience Sampling
a method of choosing a random sample by selecting every "nth" person until the desired amount has been choosen.
ANS Systematic sampling
C ANS A study was done to determine the age, number of times per week, and the duration (amount of time)
residents use a local park in Grand Rapids. The first house in the neighborhood around the park was selected
randomly and then every eith house in the neighborhood around the park was interviewed.
The population is ______?
a. All of the residents of the first house only that use the local park in Grand Rapids
b. The residents of every eighth house in the neighborhood that use the park
c. All the residents in all of the houses in the neighborhood that use the local park in Grand Rapids
C ANS A study was done to determine the age, number of times per week, and the duration (amount of time)
residents use a local park in Grand Rapids. The first house in the neighborhood around the park was selected
randomly and then every eighth house in the neighborhood around the park was interviewed.
The SAMPLING METHOD used in this scenario is known as _____?
a. stratified
b. simple random
c. systematic
d. cluster
, e. bias sampling
A ANS A study was done to determine the age, number of times per week, and the duration (amount of time)
residents use a local park in Grand Rapids. The first house in the neighborhood around the park was selected
randomly and then every eighth house in the neighborhood around the park was interviewed.
"Number of times per week" is what type of data?
a. Quantitiative Discrete
b. Qualitative Continuous
c. Qualitative (categorical)
d. Nominal scale
C ANS A study was done to determine the age, number of times per week, and the duration (amount of time)
residents use a local park in Grand Rapids. The first house in the neighborhood around the park was selected
randomly and then every eighth house in the neighborhood around the park was interviewed.
"Duration" is what type of data?
a. Nominal Scale
b. Qualitative (categorical)
c. Quantitative continuous
d. Quantitiative discrete
For a ratio:
Comparison of two data sets or numerical scenarios
For a proportion:
Described as using a subset total also using a subset and dividing by the total. They are similar because they
compare two data sets. However, they are different because a ratio only compares amongst itself. While a proportion
can compare multiple qualitative data sets. ANS Define Ratio and define a proportion. How are they similar?
How are they different?
Addition; Multiplication ANS We use the _________ Rule of Probability to test for two events' independence,
while we use the __________ Rule of probability to test for two events' exclusivity.
We assume they are NOT independent and we also assume that they are not mutually exclusive. ANS If no
probability values are available for us to calculate two events' independence or mutual exclusivity, what do we
assume?
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